[Ekaros]

I would say that we are or were close to average peak. Just due to access to sufficient number of calories. In many parts of West that really wasn't true in relatively recent past like beginning of last century.

[dalbasal]

That may be true, but is tangential to parent's point. The point was that smart people existed, not that the median or average intelligence was higher.

It's about how their geniuses compared to ours, not how our average Joe compares to theirs.