well i always have high tax, and for me at 80% tax its kinda impossible to get over 30B, than people would hate me and start leaving. i had a planet that could have 100B population, so i crammed in another 30B to fasten everything up (10B were living there atm, turns were long since it was a big map so i didn't wanted to wait), but they all left pretty fast, i lost like 20-25B in a few turns. |
...Uh, okay. Several things come to mind:
1) Morale degrade from population is maxed out at 25-26 billion people. Getting over 30 billion is no harder than getting over 27, and getting over 95 is as easy as getting over 30 if you have room for farms.
2) Farms determine how many people will fit on a planet. If you put people on a planet such that the current population is greater than the max population, people will leave fast.
3) With ten VR Centers and some morale bonuses from trade goods or resources, it's possible to keep morale at a decent level with populations exceeding 25 billion and taxes at 80%. It's not very efficient to do so unless you're worried about being invaded, but it's possible. I have a couple of worlds with 95 billion in my current game, as they ended up right in the middle of enemy territory and I don't want to lose them. (I also have +120% population growth at the moment

)