Women are genetically predisposed to take hooking up a lot more seriously than we do. I'll spare you all the evolutionary psychology behind it, but suffice it to say that gay men operate just like straight men in that regard, but even if there were a million women on Loopt they wouldn't be doing that.
That may be true (about women) but my experience is that it's yet another bell curve and there are some very sexually active women who act more like men at one end of the tail.
That's true. All of the reasons why women are like that became unimportant when the pill was invented. The behavior largely persists due to its being ingrained, but nothing is absolute.
True. But the pill and other forms of protection have largely disconnected sex and procreation (or at least have made the connection optional). Also modern medicine has greatly reduced female deaths during pregnancy and child birth from something like a combined 1/3 to 5/1000. So the two major reasons why women are genetically predisposed to be more careful about hookups are largely (though not totally) eradicated.
It doesn't really seem like that far a stretch if you look at it in the lens of "the species Homo Sapien and its mating rituals". If a successful mating occurs, the woman cannot breed for at least 9 more months.
If a man successfully impregnates a woman, he can do it again as soon as he is physically able to commit the act again.
So it's in the woman's best interest to be selective while it is in the man's best interest to not be selective at all.
It's believed that women died in childbirth somewhere up to 1/4 of the time for most of our history (until a few thousand years ago, since when it's slowly but greatly improved) due to our enormous heads, which would probably be the largest reason. Plus they were rather less able than normal to fend for themselves for a few months right beforehand, and were too busy (if they wanted their little bundle of genes to survive anyway) to do so for a while after.
