Ever wonder why we don't have flying cars, space colonies and nanobots that cure all diseases? That's because the collective Intelligence is simply too low. In order for society to be this way, everyone must have the intellectual capacity to be a scientist and engineer, not just the cognitive elite. The only way to achieve this is to financially incentivize high IQ people to reproduce and the low IQ to be sterilized and or executed.

https://www.youtube.com/watch?v=pno6Ir_nDAQ