Earlier quoted context omitted.
The irony in all this is that fertility tends to drop amongst people considered successful and (mostly) progressive, meaning that conservative unsuccessful people will out-breed them. One would think that the logical thing to do if you're rich and successful would be to have many kids, and see if it's due to genetic factors.
> The irony in all this is that fertility tends to drop amongst people considered successful and (mostly) progressive, meaning that conservative unsuccessful people will out-breed them. If this argument really holds, why has the world become so much more progressive over the last two centuries?
It only became so progressive since the 1970's, the 50's were fine. The reason: drugs.