[nyolfen]

>We don't have a clue how to edit DNA to make people smarter or taller or stronger. And there's no sign that we're going to get to that knowledge sometime this century.

iterated embryo selection for those traits is at most 10-15 years away, though i suspect much closer

[bilbo0s]

You suspect wrong. The time it takes to ascertain the, say, intelligence of an iteration is just too long. The OP is right, this sort of thing is, best case, a century long study.