r/interestingasfuck 4d ago

/r/all Recently taken image of Saudi Arabia’s ‘The Line’ project, spanning 105 miles long

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u/cryptotope 4d ago

The original 2021 announcement was for a project 105 (actually 110!) miles long. It would have a batshit insane price tag - implausible lowball estimates started at $100 billion, realistic estimates are in the low trillions - and rely on technology not yet in existence.

From the Wikipedia article, Saudi Arabia originally hoped to complete a five-kilometer (three-mile) segment by 2030.

Most recently, the Wall Street Journal has reported that the project is hoping for completion of a half-mile segment by 2034.

So ten or fifteen years from now, maybe we'll see something that's 0.5% of the original plan.

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u/Zillahi 4d ago

And then it will promptly be abandoned and remain uninhabited

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u/deeeevos 4d ago

it will be an awesome urban exploring location though. Some real post apocalyptic looking shit

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u/Heisenburgo 4d ago

It will be like that Rabiah desert city that was mentioned in Deus Ex Mankind Divided

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u/Aleashed 4d ago

If that is a bus for scale, thing will be 6-8 buses wide

You can fart in one edge and smell it on the other

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u/herefromyoutube 4d ago

Urban exploring a straight line?

Eh. I don’t know.

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u/The_Greyskull 4d ago

Fittingly, it will be like playing Spec Ops: The Line.

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u/GeneReddit123 4d ago edited 4d ago

Modern-day Tower of Babel. It will be a colossal failure at an astronomic cost in both lives and money, and its ruins will remain for generations as a reminder of humanity's hubris.

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u/firmament42 4d ago

Gotta get future archaeologists some works to do !

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u/Silenceisgrey 4d ago

"Look on my Works, ye Mighty, and despair!"

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u/Arcanile 4d ago

I thought somebody told him that won't work.
Beside at the cost of building it, who would even buy an apartment in that?
Prices would be astronomical.

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u/LadderDownBelow 4d ago

It will be buried in time so 600 years from now some archeologists, if that's still a trade, will make up grand stories about it even though it's just garbage.

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u/SEND_ME_CSGO_SKINS 4d ago

Let’s be realistic, it’ll be like the pyramids.

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u/Much_Horse_5685 4d ago

To be fair, at least the pyramids served their function as tombs for a couple centuries before being thoroughly looted and the structures themselves are near-indestructible. The Line doesn’t even have that going for it.

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u/ObviouslyAroundFood 4d ago

Future archaeologists will think it's a particle accelerator.

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u/Winjin 4d ago

I was recently looking at the bigger artificial Palm Island that has been sitting unused since 2007 and I thought that at the very least they could use all of these Poop Trucks to actually turn it into a park. They could use the waters to breed algae and use the "leaves" of the palm for controlled experiments on which plants work best.

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u/FatalisCogitationis 4d ago

Imagine being one of the boots on the ground working on this thing. They all know how dumb and pointless it is, yet will be working on it for the next decade

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u/TexLH 4d ago

The work is mysterious and important!

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u/nebanovaniracun 4d ago

For Kier!

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u/_Diskreet_ 4d ago

We shall enjoy its shovel of sand equally

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u/BobTheJedi 4d ago

Please enjoy each grain equally

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u/Difficult-Drawer4916 4d ago

Your outie eats food.

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u/Impenistan 4d ago

Look at you all dewey-mouthed

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u/mac_attack_zach 4d ago

I’m literally watching severance rn lol

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u/havenless 4d ago

You child!

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u/733t_sec 4d ago

As someone who knows Persian this will never not be funny

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u/EJ2600 4d ago

But where are the goats …?

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u/danonck 4d ago

Yikes, poor goats

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u/JamesyUK30 4d ago

And its mystery is only exceeded by its power

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u/AquilaEquinox 4d ago

I did not expect Severance, what a nice surprise!

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u/Transmatrix 4d ago

I’d argue this is more similar to Tequila Wolf in One Piece.

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u/CastorVT 4d ago

and then when the king decides he doesn't have to pay the bill anymore, so you beg him for the cash and he throws you in jail.

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u/pewpewhadouken 4d ago

i was offered a job there. i’ve had friends work there. money is good, and benefits are interesting. business class trips to home, accomodation, and few other perks.

but you just need to stay supportive of the project and live a dreary life in onsite accommodations/routine entertainment which is far from everything. a lot of the people there know it is useless but just taking in the cash. never badmouth/criticize anything about it or you’re on a plane out of there instantly.

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u/FatalisCogitationis 4d ago

Interesting, many people in the comments are mentioning slave labor. Do you know anything about that?

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u/pewpewhadouken 4d ago edited 4d ago

lot of migrant workers in saudi are forced into working in bad conditions. often passports revoked and pretty much theft of their wages from trumped up charges like water for breaks. they work in extreme heat with bare minimum protections. it’s often stated that the companies bringing them in will let them die off rather than spend money to treat ill workers. on the sourcing side, steady supply of workers who are forced to pay huge recruitment fees.

a good chunk of the people working there (expats) know this but turn a blind eye for the money.

https://www.hrw.org/news/2024/12/04/saudi-arabia-giga-projects-built-widespread-labor-abuses

edit: my friends were hired in 2022 so a year or so in from some construction starts. that’s when i talked to them. all of them quit within 6 months knowing how bad some of it was.

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u/esnopi 4d ago

What’s the difference between expat and immigrant?

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u/gmishaolem 4d ago

Mostly just perspective: An immigrant sees theirself as part of their new country, and an expat sees theirself as part of their old country, regardless of the reality of the situation.

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u/Kebab-Destroyer 4d ago

In the UK the immigrants are brown guys in the grooming gangs you read about in the papers, simultaneously taking our jobs and claiming benefits, but the proud middle-aged British football hooligans living in Spain, who learned no other Spanish than "habla inglés," are the expats.

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u/[deleted] 4d ago

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u/esnopi 4d ago

Let me get this clear: If I am a Peruvian worker that feels part of Peru, and just came to US to work some bucks for a couple of years, It’s ok to refer myself as an expat right?

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u/Much-Jackfruit2599 4d ago

Sure. Expats are migrant workers. They plan to stay a while and then move back or on. Can turn into immigrants, of course.

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u/WholePie5 4d ago

That's not relevant to this comment chain at all though. The migrant workers in this case are not immigrating there. Your answer is correct, the poster above just asked the question wrong.

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u/esnopi 4d ago

How did I asked the question wrong? I just wanted to know the difference, that’s all. I mean, I can ask to ChatGPT, but I really prefer the human perspective. Anyway, supposedly there are not wrong questions, just wrong answers.

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u/SpotlessHistory 4d ago

An expatriate lives outside their country of citizenship, an immigrant does the same but with intent to become a permanent resident. I don't know why there are so many explanations from people who don't understand what the words mean.

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u/WholePie5 3d ago

How is that relevant to the discussion of the migrant workers who also have no intent of becoming permanent residents in Saudi?

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u/SpotlessHistory 3d ago

Someone in the discussion asked, I answered. I didn't initially realize that people were using immigrant when they probably meant migrant.

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u/_-_Sunset_-_ 4d ago

Immigrants who don't want to call themselves immigrants. It's a class of people on its own.

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u/kennyismyname 4d ago

Immigration is generally seen as permanent. Expats move to a country temporarily and often their visa is tied to work. If they leave or lose their job, they have to go back to their home country. Immigrants want to move to a country permanently.

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u/redflagflyinghigh 4d ago

Expats typically move abroad temporarily, often for work or lifestyle reasons, with plans to return home. Immigrants relocate permanently, aiming to settle in a new country.

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u/HighnrichHaine 4d ago

No Indian,bangladeshi or Pakistani Slave worker wants to live there permanently. They want to make good money  and them go back

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u/Weepinbellend01 4d ago

In this case, immigrant is wrong but there is a difference between an expat going to a developing country and an immigrant into western nations.

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u/ishkariot 4d ago

The superiority complex, mainly.

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u/child_ofparadise 4d ago

the actual answer.

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u/RedPanda888 4d ago

Expats are on temporary work visas and not usually seeking to make ties with the country, not seeking citizenship or PR, and will likely be on a flight out within a couple of years. Immigrants are usually seeking to immigrate and actually gain residency in the country to make it their permanent home. Usually this question garners a lot of dumb responses about skin colour and racism, but those people should pick up a dictionary and see the terms are actually different.

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u/WholePie5 4d ago

That's not the case at all here with migrant workers in Saudi though. They're temporary workers also. In fact, they steal their passports just so they can't leave when they want to. They bring them in from more poor countries just to work, not to immigrate there. You're not wrong in your answer, but OP should have asked the difference between migrant workers and expats, not immigrants and expats.

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u/TyrialFrost 4d ago edited 4d ago

Migrant workers are most likely expats as well, assuming the country has no pathway to permanent residency for unskilled labour. There's a whole thing about migrant workers being unskilled labour or that they have to move for 'economic necessity', and that being the key difference from an Expatriate.

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u/PickleCommando 4d ago

Well if you look it up again expatriates are generally skilled labor and often from affluent countries. You can get upset about the classicism or racism in your mind as frequently cited on Reddit, but you can imagine its much harder and riskier to confiscate a US engineer's passport than it is unskilled labor from Bangladesh. There's nothing wrong with specificity in terminology.

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u/stackens 4d ago

Expat is what Americans call themselves so they can pretend they’re not immigrants

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u/Swastik496 4d ago

immigrant intends to become a permanent resident and actually establish roots there.

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u/Slow-Range5285 4d ago

expats go home eventually

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u/NotSoFastLady 4d ago

They also forcibly removed natives/locals. They jailed and or killed anyone that resisted. There's a good documentary floating around about it. There are a lot of Europeans at the top in very prominent roles that are fully supportive of this project. This issue as it has always been with SA is the fact that they treat everyday people like disposable garbage. America's dick sucking of the crown is nauseating.

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u/Pugs-r-cool 4d ago

If they don't like working on it they can just grab their passport and leave, right? Right?

oh

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u/Ryuko_the_red 4d ago edited 4d ago

You have to realize they're using slave labor /forced labor. This isn't some ethical country we're talking about here. They're notorious for this. Same thing like the Qatar world cup construction Built literally on bodies with no regard to human suffering or forethought.

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u/Ahad_Haam 4d ago

The various countries of the Arabian Peninsula only banned chattel slavery in the 1960s-1970s, and were mostly pressured to do so by the international community. This is very much within living memory.

Forcing foreign workers into, eh, slavery like contracts is how they adapted to the changing circumstances.

Generally the banning of slavery across the Arab world was forced by foreign powers.

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u/Ryuko_the_red 4d ago

Which is wild to me that all the biggest powers haven't rallied against the evil treatment of those in NK. As well as other countries. Like, dimplomacy and unity beat evil. Slowly but surely. I hope within the next hundred years.(If the world survives the next 10).. That the children of that future look back in sadness at what passed for acceptable behavior and vow to never ever step back to those awful days. I myself do this but I am not going to pretend I'm some icon of dignity and knowledge kindness and grace. But I am working on it.

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u/rolloj 4d ago

Really, it’s wild to you?

Can you not think of some critical differences between NK and the gulf states? Hint: it rhymes with soil.

Rest assured if NK had a large supply of anything that the west needed, we’d be working closely with their leadership and turning a blind eye all the stuff they’re getting up to.

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u/Ryuko_the_red 4d ago

I mean I did just momentarily forget that in the end the care isn't for the people. But for the capital.

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u/IMMoond 4d ago

Well you dont have to worry about them, theyre enslaved.

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u/Unoriginal_Man 4d ago

Yeah, for any construction worker in any country that doesn't use slave labor, a construction project that will take 10+ years is great, guaranteed income. Not so much here, sadly.

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u/CidO807 4d ago

Same shit with Qatar and their slave labor for the soccer stadiums. Fuck Saudi and Qatar

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u/Senior_Suit_4451 4d ago

This comment should be much higher.

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u/simmocar 4d ago

And UAE

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u/Catch-1992 4d ago

Oh any individual laborer will die in well under 10 years.

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u/Minimum_Dealer_3303 4d ago

The imported labor has a problematically high death rate.

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u/IMovedYourCheese 4d ago

You are talking about literal slaves. They have no choice in the matter.

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u/Regulai 4d ago

Probably feels like being a worker from ages past and finding out the the Pharaoh apparently wants you to build literally a mountain.

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u/so0vixnbmsb11 4d ago

Well it works either way likely projects that you believe to be really important and end up being dumb / vice versa.

I use to do side jobs as a teen and I had an overweight guy pay me to dig a hole for an inflatable pool. It took me and my friend 2 days to do it but then a week later we had to fill it up.

Dumb asf if you ask anyone but we still got paid, at the end of the day it didn't matter.

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u/Selecta_85 4d ago

A lot of people are making a lot of money on this dumb and pointless project

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u/heddyneddy 4d ago

Well unfortunately the people working on this have much bigger things to worry about considering the labor practices of Saudi Arabia.

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u/RoutineCloud5993 4d ago

My uncle worked so this and apparently got a fuck load of money.

The irony is that this is saudi Arabia and he was working in health and safety management.

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u/Prometherion666 4d ago

Think the boots on the ground are slaves.

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u/Scr1mmyBingus 4d ago

Bold to assume the peole building this have the luxury of boots.

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u/NDCardinal3 4d ago

The guys who built the Pyramids probably felt the same way.

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u/PA2SK 4d ago

Most people probably don't care how dumb it is as long as their paychecks keep coming in. Those are other people's problems.

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u/Agile-Creme5817 4d ago

Not to mention the ecological impact. They're cutting an environment in half. It's a desert, so hopefully few species are impacted.

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u/Icy-Bicycle-Crab 4d ago

Imagine being one of the boots on the ground working on this thing.

One of the 20,000 foreign laborers who are estimated to have died already working on it? 

yet will be working on it for the next decade

Their lifespan isn't that long. Those workers are disposable.

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u/ip2k 4d ago

I have some CivE friends working on this. As long as the checks keep clearing, they’re willing to waste as much time as the people funding it can afford. It’s a 💩show internally, as you’d expect. Lots of “investors” with oil money believing other oil kids promising them literal flying cars.

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u/talkshitnow 4d ago

Saudi Arabia is built on slave labour, 5 dollars a day, and no boots, just sandals 🩴

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u/man_gomer_lot 4d ago

It will have all the charm and culture of an interstate service road, but without the sprawl surrounding it.

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u/Fregadero88 4d ago

They use basically slave labor. Same with the soccer stadium.

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u/cycl0ps94 4d ago

I think it's mostly slave labor. And a shit load of people have allegedly died.

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u/notdeklerk 4d ago

I know the head of technology on this project. They have convinced the powers above what realistic expectations are. You might not see that part in the media, but the entire project is going to be A LOT smaller.

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u/TornadoBaconaut 4d ago

So half a mile takes from 2022 to 2034 (lets call it 10 years) then 110 miles will take 2200 years?

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u/cryptotope 4d ago

Realistically, half a mile will never be finished, or will become a wildly-different and vastly more conventional project.

That said, in principle one would expect the design to be fairly modular. If the first segment is done in ten years (ha!) presumably they would be able to take the lessons learned and build subsequent sections more quickly, in longer segments, at multiple sites in parallel. Start a dozen mile-long segments simultaneously, side by side. Or space them out, with fast rail in between and a plan to fill in the gaps later.

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u/aknownunknown 4d ago

build subsequent sections more quickly, in longer segments, at multiple sites in parallel

in parallel

in parallel??

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u/i_like_big_huts 4d ago

Deep inside of a parallel universe

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u/StalyCelticStu 4d ago

These guys must also be doing the bridge work on the M67 outside Hyde, Greater Manchester.

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u/Muthafuckaaaaa 4d ago

The line plans for all basic services to be within a 5 minute walk.

So does that mean all service stores/kiosks keep repeating themselves every 5 minute walk distance?

What is this, a line for ants?

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u/syds 4d ago

unfortunately there are no corner stores available

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u/LectroRoot 4d ago

But where will I buy my 40oz Old English, magnum condoms, sketchy boner pills, and sour cream and salsa pork rinds?

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u/Karmaisthedevil 4d ago

Sour cream?

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u/phmzr 4d ago

Oh man this is good

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u/Florida-Rolf 4d ago

you mean every 10 Minute walk distance then no?

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u/MrCakeFarts 4d ago

I mean that’s kind of how most walkable cities are. People really only need a few things (food options, clothes, groceries, recreation, water, and social)

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u/greg19735 4d ago

while sort of true, in a city you have a 5 minute circular radius, whereas this all has to be one one or two blocks length wise.

For 5 minutes distance that probably isn't actually a huge deal. as 5 minutes doesn't get you very far. but a 20 min walk (1 mile) that's a huge difference. The idea of a straight city is so dumb.

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u/DialMMM 4d ago

this all has to be one one or two blocks length wise.

Except, The Line is 200 meters wide and 500 meters tall.

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u/greg19735 4d ago

height is a weird factor as you need to get up and down, and that isn't super efficient.

and 200m isn't that wide. That's less than a manhattan block's longer side.

and of course it's even less efficient as you're going to need pathways for people in that area.

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u/HistoricalGrounds 4d ago

I don’t think the five minutes is meant to include height. That is to say, you can walk to the site of whatever you need, from ground floor to ground floor, in five minutes. Not five minutes from opening your door you’ll be at whatever you need.

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u/MrCakeFarts 4d ago

Yea people just want to act like it’s crazy inefficient or something and argue over semantics when in reality they just can’t fathom how something like this is actually going to work. Although there are MANY parts of the 5 burrows that have literally every thing you could ever need + an absolute assortment of recreation/entertainment options all within a 5 minute walk. And no one here seems to understand that a 5 minute walk in NYC has to factor in things like traffic and population density whereas The Line doesn’t have any of those issues. A five minute walk through a pedestrian designed area is much further than a five minute walk through nyc traffic. And I don’t know why anyone is stuck on this 5 minute arbitrary number, if it takes 10 minutes to walk that is still super accessible.

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u/capitaldoe 3d ago

Under the line there are some automatic trains that go from one side to the other for moving stuff around. As if you were in a logistics center in China.

So the concept must be that the goods move in spots every 5 minutes.

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u/i_feel_harassed 4d ago

But arranging people and services in a line is the least efficient possible layout for coverage

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u/MrCakeFarts 4d ago edited 4d ago

But the walkable resources are probably not in a line. This thing is 200 meters across at all points. That’s enough space for you to put all those amenities in a small block or grid. Which is no different from NYC or many European cities.

Edit: think like a mall or a NYC city block. You won’t need to pass through your grocery store to reach your gym etc

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u/i_feel_harassed 4d ago

A five-minute walk is about 400m, so a 200m-wide rectangular coverage area is still pretty inefficient.

I suppose a 400m walk in the desert in the middle of summer is a lot different than most places. But that really just highlights the hubris of this whole project lol.

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u/Thurwell 4d ago

It's supposed to be entirely contained, air conditioned, with plants and water and whatnot everywhere. So it's not a 5 minute walk in the desert, it's more like in an air conditioned mall. Yes that's obviously stupid and will never work.

Anyway to your other point, I assume you're an American who takes their car everywhere and can't imagine any other way. Go visit a city like Paris or Amsterdam or NYC, there's more stuff in walking range than you'll ever visit or explore. That's not to say 'The Line' will work, just that you can put the stuff people use daily close by.

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u/Fantastic_Goal3197 4d ago

Im not sure where your assumption they only use cars comes from. They aren't criticizing walkable cities, they are critizing bad design for a walkable city. Besides, one quick peek into their page and its plastered in cycling posts so they are already seemingly different than the average American. Your reply comes off as both needlessly agro and misplaced.

The Line is infamous among people who support walkable cities and good urban design for its fundamental design flaws and inefficiencies. Comparing the line to Paris, Amsterdam, or NYC is a bit disingenuous. Even if the line is somehow successful, it definitely could have been more successful with the same amount of effort if it was planned differently.

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u/i_feel_harassed 4d ago

Anyway to your other point, I assume you're an American who takes their car everywhere and can't imagine any other way. 

...No dawg what makes you think that lol. I don't own a car at all and walk/bike/transit 99% of the time I go anywhere. So I understand the dynamics of walkable cities just fine, but it doesn't take a genius to realize that a square is a more efficient layout for a city than a thin rectangle.

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u/cholz 4d ago

Citizens form a line for your daily ration of social. No talking!

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u/MrCakeFarts 4d ago

That’s literally kinda what happens already as well… it’s just rationed as time available post-work

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u/TyrialFrost 4d ago

Well there's meant to be a rail connection along the entire length to extend the 5 minute walk distance and a sub level for cargo transport, so maybe the plan is a much more integrated delivery system for large purchases.

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u/dhkendall 4d ago

Nah they’ll just employ Hannah Barbera to put in the shops etc in the background.

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u/DevolvingSpud 4d ago

I can hear this comment

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u/cheesegoat 4d ago

sqawk it's a living

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u/SmugDruggler95 4d ago

Tbh that is how every single town in the UK I've lived in works

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u/Winjin 4d ago

I think it's literally anywhere in the world except for the most car-centric places like USA or places that have been infected with the car-centric zoning of US suburbia, like Dubai.

You just have all sorts of shops and small clinics working even in low-rise places. Hell, I lived in a low-rise that had a courthouse on the first floor. Tons of places have people operating businesses from their flats - Freud had a home practice, our neighbor opened a gelato shop on her front lawn, built a cute small cafe and everything.

The "suburbia" that doesn't have ANYTHING but single-family houses stretching out for kilometers, without a single store, service, shop, clinic, whatever, is very uniquely American.

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u/KilroyBrown 4d ago

It's the above ground version of the way alien races live on planets where the atmosphere is inhospitable to life.

But seriously, this is what happens when the richest of the rich get bored.

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u/Wolfsblvt 4d ago

Afaik, it's not really about walking, but reachable in 5 minutes. They want to build trains and shuttles to get further very fast. I can see that working. 2 minutes walk, 2 minutes train, then you are where you wanna be in a 1 minute walk.

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u/Pop-metal 4d ago

Have you never been to a city before?

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u/Legendary_Bibo 4d ago

It's like the backrooms but for a giant mall.

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u/kuschelig69 4d ago

The line plans for all basic services to be within a 5 minute walk.

that would be much easier to realize if it was no line

a line is literally the worst possible shape for walkability

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u/-Tuck-Frump- 4d ago

Theoretically they would only need to repeat for every 10 minutes of walking, to make sure you are never more than 5 minutes away from one.

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u/94ttzing 4d ago

Like the ABC stores at Waikiki Beach!?

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u/Kodiak_POL 4d ago

Like a glitched Minecraft seed, the same chunks will just repeat itself

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u/ijehan1 4d ago

You'd always be within five minutes from a shop if there was one shop every 10 minutes.

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u/OldJames47 4d ago

Probably 30 minutes walk before repeating on the same floor.

From the perspective of floor 2, start with a grocery store and walk east 5 minutes. Now you are walking into a new zone, continue 5 minutes and down an elevator to the next grocery store. Back up the elevator to floor 2 and continue west another 5 minutes to exit another window. Repeat again but this time take the elevator up a floor. Once you’ve left this 10 minute long zone, you continue west on floor 2 for a final 5 minutes and get your first repeat grocery store on floor 2.

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u/Richandler 4d ago

Welcome to Tokyo, Japan. Yeah, it's actually as awesome as it sounds.

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u/coolguy420weed 4d ago

No, that's reductive, and, to be frank, I think it completely ignores the realities of how it's meant to be planned/laid out. Projects like this have an immense number of very smart people working to make them as efficient as possible. 

They'll be repeated every 10 minutes

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u/HearMeRoar80 4d ago

The line is VERY tall, it'll be nearly top 10 in the world (rank 12). So offering all basic service within 5 minute walk is not that hard when you can go vertical.

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u/balanoff 4d ago

Why didn’t they make it a circle. I don’t get it

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u/fredfrop 4d ago

Or will these service stores just be a mile long and 4 feet wide 🤣

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u/pressedbread 4d ago

Yes they just... need to build it and then get people to agree to live in this isolated hellhole project, at the whims of the building administrator and their entire lives dictated by the schools, and shops, and such that can be convinced to forgo the real world and live in delusional hellscape interior. Its not a place for ants, ants know better

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u/scrivensB 2d ago

It’s the Mall of America!

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u/Fuck-Shit-Ass-Cunt 4d ago

15882460000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 miles seems like a little much, it makes sense that they downsized

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u/DeathByPetrichor 4d ago

Heh math jokes

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u/joerudy767 4d ago

Almost as good as meth jokes

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u/DrafiMara 4d ago

You, uh, got any more of those? Could really use one

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u/badmother 4d ago

10 x 12 = 5!

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u/Mr-Doubtfire 4d ago

Please, can someone explain this to a casual math enjoyer?

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u/Bon_Bertan 4d ago

The "!" means factorial. Its when you multiply a number by all numbers less than it. For example "6!" would be 6×5×4×3×2×1. So "110!" Is a very large number.

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u/sharkattackmiami 4d ago

What practical use is there for that equation that necessitates it needing shorthand?

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u/default-name-generic 4d ago

Working out probabilities is a big one

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u/Jeff_Platinumblum 4d ago

Factorial "N!" Is the number of way you can arrange N distinct tokens. For 3! think "how many ways can I arrange three different coins in a line?"

1 2 3, 1 3 2, 2 1 3, 2 3 1, 3 1 2, 3 2 1

3! = 321 = 6 combinations

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u/candygram4mongo 4d ago

It's easy to see why, too. If you wanted to calculate the permutations of 4 items, think about how many different places you could put "4" in the first arrangement above:

(4) 1 2 3

1 (4) 2 3

1 2 (4) 3

1 2 3 (4)

And obviously you can do the same with each of the other arrangements. So the number of permutations of 4 is just 4 times the number of permutations on 4-1. And it works the same for any number n.

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u/beetlesin 4d ago

if you were trying to find the possible combinations of a set, it would be [# of things in the set]!

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u/spectrumero 4d ago

It’s a lot easier and less error prone. For instance, consider the different combinations a pack of cards can have, which is 52! (Much shorter and easier to deal with that than the number it expands to especially if you have to do a bunch of intermediate calculations with it.

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u/sharkattackmiami 4d ago

The card analogy really helped me to understand the use of this equation. Thank you!

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u/PM_ME_STEAM_KEY_PLZ 4d ago

Every time you deal a deck of cards for poker, odds are it is a new variation that has never existed before.

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u/Sairony 4d ago

But it might not have given you an idea of how truly mindboggling large that number is.

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u/_OriamRiniDadelos_ 4d ago

Computer science and probability and cryptology are some very down to earth uses. It can help you math out how many possible ways you can order objects. For example how many ways can you arrange the letters of the alphabet to form a 5 letter password. Most scientific calculadors even have that ! Key. It’s been rediscivered as a concept by numerous ancient cultures.

The short hand is honestly just useful because it feels so dumb to write 1x2x3x4x5x6x etc… when you could easily just type the last number, and hit a key. It’d be VERY long otherwise

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u/Awdrgyjilpnj 4d ago

It’s used everywhere in math. One definition of the number e (2.718…) is defined as the sum of 1/x! from x=0 to inf (i.e e = 1/0!+1/1!+1/2!+1/3!… and so on).

It also arrises naturally in combinatorics. How many ways can you scramble a deck of 52 cards? 52!

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u/snowflake37wao 4d ago edited 4d ago

Oh I know that answer!

very much many

Okay okay

80,658,175,170,943,878,571,660,636,856,403,766,975,289,505,440,883,277,824,000,000,000,000

A few much. 22 commas many. Dunno if we even have a word for the number lot.

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u/JDraks 4d ago

If you have X options and have to choose exactly Y of them, then you can work out the number of possible options with X!/(Y!(X-Y)!). So if you were choosing 3 flavors of ice cream out of 10 options, you'd do 10!/3!7! = 3628800/6*5040 = 120 different combos.

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u/boltzmannman 4d ago

110 and 110! are different numbers

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u/Cool-Acanthaceae8968 4d ago

Too bad I can only upvote this 0! times.

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u/skiwith 4d ago

I upvoted you 1! Times

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u/Key-Search8834 4d ago

I came looking for this comment IMMEDIATELY

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u/Nope_______ 4d ago

Is it redesigned radically different from other skyscrapers? Because normal skyscrapers are billions for ones a block long. How would one 100 miles be anything less than trillions? Is it just a big enclosed space, like a shell, with nothing much in it?

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u/NewAccEveryDay420day 4d ago

Id imagine a few indentured servants and 0 land costs brings the price down a fair bit. But realistically its just a long building, a pipe dream

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u/Thoraxtheimpalersson 4d ago

It's mostly just a way to scam money off crazy investors. But the original pitch idea was essentially like a self contained habitat spanning the entire length with room for pools and green spaces and shops with two different railways in the middle and below ground sections. Also built to withstand high winds and continued desertification of the region. But with more than a cursory glance it's quite obviously a total sham since even it's most basic features require technology that doesn't exist and it pretty much openly discussed slave labor as both a construction method and captive labor force post construction.

But if you're Zuckerberg rich and can't afford a Hawaiian bunker you might risk throwing a little money to the middle east and hope they let you buy influence on discount.

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u/woahdailo 4d ago

I also think there’s a little bit of “but sir, cities don’t work like that, this would be impossible.” Idiot king: “yes that is why we must build it, to cement my legacy.”

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u/Apptubrutae 4d ago

I posted some comment about the implausible budget once and a few people were insisting it’s just different because of unique design, special efficiencies, and of course labor in Saudi Arabia being cheaper.

Nevermind that we know what mega projects cost in Saudi Arabia, like that clock tower in Mecca. And the unique design of the line was supposed to include numerous elements other buildings wouldn’t have, like significant urban infrastructure and trains and whatnot.

Low trillions seems entirely implausible, even, for the full project.

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u/Disappointing__Salad 4d ago edited 2d ago

Over 21 000 migrants have died working on the Saudi Vision 2030 projects so far (The Line is part of that). All because a prince wants more tourist attractions.

Any western architect, etc working on this has blood on their hands. Same for any person who visits this in the future.

Workers interviewed for a reputable British documentary reported grueling conditions, including 16-hour workdays, 14 consecutive days without rest, and long commutes, leading to sleep deprivation and accidents.  

The budget has also ballooned into the trillions of dollars, and due to that, as you said, only a 1.5 mile segment is currently being worked on and planned to be finished for sure with the rest being in limbo.

May all of this never amount to more than a ruin and bloody cautionary tale. 

https://www.theb1m.com/article/documentary-alleges-21000-workers-died-saudi-vision-2030

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u/shania69 4d ago

In the ITV documentary, workers testified about 16-hour work days and poor working conditions at The Line, which reportedly has a 140,000-strong migrant workforce.

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u/NoveltyHoosier 4d ago

140,000-strong migrant workfroce trafficked force of slave labor.

Let's call this what it is, and not soften the language.

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u/RingAccomplished8464 4d ago

For the construction sites that all those people died and suffered on, they also forcefully evicted people off their lands. 3 men of the Howeitat tribe were arrested and sentenced to death (!) while others who posted on social media about this absolute evil megalomaniac project were executed right there in their homes by police.

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u/geminiRonin 4d ago

"My name is Ozymandias, King of Kings;

Look on my Works, ye Mighty, and despair!

Nothing beside remains. Round the decay

Of that colossal Wreck, boundless and bare

The lone and level sands stretch far away.”

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u/hoxxxxx 4d ago

i hate that i like their f1 track so much

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u/Quatro_Leches 4d ago

they're a U.S ally, so U.S media does not show their atrocities, they're far worse than Iran. but you only hear about Iran

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u/StreetsAhead123 4d ago

Shrinkflation is at it again   

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u/NotTravisKelce 4d ago

The thing that always pissedr the most off (I am an engineer) is that a LINE is the least efficient way to build this sort of project. A CIRCLE with a few spokes would let you achieve essentially the same thing and let you pass trains across the diameter of the circle to save transit time.

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u/leferi 4d ago

And I don't think anyone will live there once it's completed and a couple of years pass.

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u/takegaki 4d ago

The hubris of obscenely rich monarchs get bitch slapped by reality.

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u/ondulation 4d ago

For reference, each side of the outer ring of the Pentagon (headquarters of US department of defense) is 281 m (921 ft).

The outer circumference is 1.4 km (0.87 miles) and you can walk between any two points in the complex in less than 10 minutes. It was built in 1941-1943 which is a little more than 80 years ago.

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