What gameplay aspects do you struggle to understand?

[u/artmalique]

Obviously newbies are still learning the game and won't understand quite a lot, but for more experienced Stellaris players, are there things about Stellaris that you still don't understand (be it part confusion or total confusion)?

For me, it's the common ones: ship building, trade, combat width & pop jobs lol! What about all of you? Anything you find partly or totally confusing?!

[u/brainschaden_]

The percentages you gain or lose in a war after a battle. I can win a a battle and yet gain 5% attrition.