They are building most if not all buildings with AIweight of 1.
That is buildings, that are required for other buildings, Industrial+ era Manufactured resource producers and National Wonders that give free building and or are needed for something or give bonus.
Problem is that air pollution went to +2000 in all cities but AI seems to be unphased by that.
I'm testing on Ultrafast/Tiny/Nightmare - very lopsided test but AI is strong despite that.
I increased pollution entries by 50% as temporary measure.
Other than that pollution doesn't hurt cities much.
Should I have introduce pollution reducing entries for Modern - Information factories?
That is like -1 air pollution with tech X.
NASA should be built anytime soon (apparently tiny generated map had no oil), Hunting Instructions always got built, and there is Community Discussion, that had AIweight since always.
I think I can set them to 1 anyway.
@Dancing Hoskuld I fixed Hunting Instructions with AI weight.
AI weight of 1 means that building, that always had value of 0 now has value of 1 - it will be built after some time.
891 buildings have it now.
There is no harm if building already has some value.
Buildings, that don't have it are either:
Aren't required for buildings.
If they produce resource, they are unlocked before Industrial era.
They are off earth buildings.
They don't have cost (autobuilt or effect building or property pseudobuilding or animal building)
They are World/Group wonders.
National wonders, that doesn't give free buildings or aren't needed for pother buildings or producing bonus.