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There's less selection pressure now because there's less mortality. A lot of people get to pass on their defective genes now that would not have been able to a
by guelo 9y ago
There's less selection pressure now because there's less mortality. A lot of people get to pass on their defective genes now that would not have been able to a couple hundred years ago.
- pmichaud 9y agoThere are still relatively strong effects. Whatever genes are statistically linked to things like less education, for example, are flooding the gene pool relative to others. There are plenty of dimensions like this.
- maratd 9y ago> There's less selection pressure now because there's less mortality. There are two pathways to selection. You're only focusing on one. Sexual selection is alive and well.
- mnw21cam 9y agoHave you ever seen the film "Idiocracy"?
- spamizbad 9y agoAre you familiar with the Flynn Effect?
- mnw21cam 9y agoWhich seems to have stopped over the last 20 years or so.
- danieltillett 9y ago…and which only ever applied to the low g fraction anyway.
- hateduser2 9y agoMost morality is cowardice
- sctb 9y agoWe've already asked you to please follow the guidelines or don't post. Could you please read them and then start commenting civilly and substantively? https://news.ycombinator.com/newsguidelines.html https://news.ycombinator.com/newsguidelines.html
- lalaland1125 9y agoThere is huge selection pressure now in that many people don't even have kids. Any gene (or other inheritable trait like culture) which increases the probability of having kids will be strongly selected for.
- otempomores 9y agoIn other words any mental disorder that supports procrration is OP.
- danieltillett 9y agoIn rich countries the selection pressure is greater than at anytime in human history. In the past no factor (other than luck) could strongly influence the number of children you had survive to adulthood as much as birth control does.