Which still takes 6400 of 11300 (or 9000ish or whatever my smaller cities give), and the remaining seeds still need to cover :simple solution, you can afford only 1 sentient manufactory
- buildings (e.g. the new culture buildings need seeds to build)
- GR productions (fire/ice/whatever productions need seeds)
- unlocking new techs
- and whatever is taken away by decay ...
I say again - this is not "balance" if the seeds required to progress are automatically more than a reasonable city can actually provide.
And how much longer will the GR take with only one sentient goods manufactory ? Am I going to live long enough ? It's starting to become a serious question