Max population for planets info?

It's the amount of food.

https://www.galciv.wikicities.com/wiki/Population

theres two limits, one for how much food you can produce on the planet and one for planet class

It'd be nice if maximum population was displayed somewhere. Showing total food production doesn't do much for you if it's way above the planet's population cap.

And the wiki says you can go over the PQ pop cap by transporting people if there's food to support them. Eh?

Low PQ worlds will only grow so far naturally (the approximate limits are listed on the wiki page), but you can put extra people there with transports and they'll be just fine.

That doesn't make much sense to me, but I guess it doesn't have to. Also doesn't make sense why essentially improving a planet via terraforming tech doesn't bump up the PQ or at least increase the PQ-based population cap. I mean, my 2nd planet in my last game was PQ4 but had 16 workable tiles after terraforming. If there's room for more structures, shouldn't there be the corresponding more room for people since the planet is now essentially just like a PQ16 world that has no terraforming potential.

So why does the PQ-based cap not scale up as workable tiles increase? (Side question would be why doesn't the PQ rating reflect number of workable tiles - it does reflect this initially, but after terraforming it doesn't). By terraforming a planet, aren't you essentially increasing it's (planet) quality?

Apologies if this has been brought up before - probably has.

Terraforming is supposed to increase planet quality, so planet quality matches the number of tiles. The fact that it isn't do this in some cases is a bug.