As always you make some very interesting points.

I just re-read my post and made it sound like we head off hunting for someone with a high IQ. Which obviously we don't (well most of us I assume!), at least not consciously, I just meant that it seems likely to me that these days bright men and women would be more likely to bump into other bright men and women more easily than in the past and thus more likely to find a match in a similar ball park LOG... Very interesting comment about the number of gifted women ending up as teachers. I was wondering myself how many gifted women ended up as teachers and nurses until quite recently because they were among the few acceptable careers for women.