The hidden assumption of "Idiocracy" is that survival of the fittest is the only selection mechanism. Even if survival and breeding become trivial, sexual selec

The hidden assumption of "Idiocracy" is that survival of the fittest is the only selection mechanism. Even if survival and breeding become trivial, sexual selection will continue, and many intelligent people will only want to mate with others of their kind, even if they become overwhelmed numbers-wise. And how will this help? I suppose you could model this in a simple way. First you could assume that the IQ of a child is the average of the IQs of its parents (don't bother telling me that's a false assumption, of course it is, but we're making a simple model here). Then, you could put in certain assumptions about the likelihood of two people meeting, and the likelihood of them mating if they do (lots of adjustable parameters here including the unwillingness to mate with somebody too much smarter or dumber than yourself). Throw in additional "dumb people breed more" parameters and see what happens to the simulation. Under certain values of the parameters, you'll just see a slide into idiocracy. But if you make people pickier about their mating partners you might wind up seeing a split into two entirely separate breeding populations -- one smart, one dumb. It would be an interesting set of simulations to do.