So basically, you need to visit your town every 2hrs

I thought it was 10 nerds generated every 2 hours, with a maximum of 40 nerds allowed in the town ... So that means I don't max out for eight hours. (Not 2 hours)

I improved/whatchamacallit my castle a little while ago and it said i will now get more than that, but not sure how many more, but my maximum also increased to compensate. So it would STILL have EIGHT hours before I max out.