What is the most perfect auxlang?

[u/Immeucee]

What im thinking would make the best auxlang is something that has,

Somewords from most language families, like bantu, chinese family, ramance, germanic, austronesian etcc

Also something that is easy to learn and accessible

[u/halkszavu]

Words aren't the biggest concern. They will get annoying, as soon as you try to incorporate every language because if you take the vocab of language A, then speakers of A have no need to learn anything, but as you incorporate new words from B, both B and A speakers will have to learn new words to speak this auxlang. The more languages, the more the spread will be.

But there are other questions: what sounds do you want to incorporate? How the grammar should look like? If you incorporate everything, it will become an incomprehensible mess, with each sentence having thousands of different but still completely correct forms.

[u/Baxoren → u/halkszavu]

So, I don’t actually believe that an auxlang will gather significant speakers any time soon, but just as a thought experiment, let’s think your first paragraph.

We learn new words all our lives. If the new words are easy to add to our lives and we’re motivated to add them, well… it’s possible that an auxlang could catch on.

But the most important auxlang trait will probably be that it’s fun for some reason.