Capis give a small amount of input reduction in the area they are in.
Frankly, the bonus is neglectible compared to commerce techs, so you will need a few in your largest province that do all the automated construction (they will build stuff everywhere), but that's it.
Frankly, the bonus is neglectible compared to commerce techs, so you will need a few in your largest province that do all the automated construction (they will build stuff everywhere), but that's it.