Given that intelligence is ~60% genetic, if well-educated people are having kids less, then are we going to start getting dumber?
Education doesn't imply intelligence. 90% of humanity that has ever lived has probably never read a word.
Yes, definitely. Or at least there will be negative evolutionary pressure on intelligence; it might still go up from other pressures.
[dead]
https://en.wikipedia.org/wiki/Idiocracy