[chmod775]

Given that pressure from natural selection has lessened a lot, chances are that we are less special now.

Our intellect evolved for survival, but now it's very much optional - has been for many generations. It and may now even be inversely correlated with having offspring.

I would be unsurprised if we're noticably dumber now than we used to be.

[sebmellen]

We seem to be making up for it with better nutrition and medicine.

[jamiek88]

Plus all the lead we spewed into the air for three generations.