Re: But .....
I recall someone arguing that the problem with an all-female society is that the laziness gene is found almost exclusively on the Y chromosome. It's the laziness gene that results in technological progress, as in "I can't be arsed to run after food animals, I'm going to invent the bow and arrow", "I can't be arsed to walk, I'm going to invent the horse and cart" and so on, right up to "I can't be arsed to dig coal out of the ground, I'm going to invent the nuclear reactor".
As far as empirical evidence on that goes I am quite willing to be subject to testing for the laziness gene and totally buy Laziness Theory plus its gender related aspect is probably easily demonstrated but I can't be bothered.
And look at Gauss - fed up with his school teachers rejection by asking him to add up the first so many integers it was far more interesting to create/discover a formula and do it like that.
I bet Gauss would love the 21st C but would he rather prefer a life on the dole to working all days and hours in research?