Hacker News Reader

That's a situation we already face. There's a line of humans who can only reproduce with IVF.

That's not a situation "we" as a culture/civilization/species face, it's a situation they face. The rest of us are perfectly capable of doing what our bodies are designed to do without doctors and scientists and other forms of assistance.

IVF babies aren't guaranteed to be infertile, they just have a slightly higher chance of it (because of selection bias in the parents).

My wife and I might well have babies via IVF because she can't get pregnant while on chemotherapy - but that doesn't mean we carry any infertility genes. She just had the bad luck to have some cells mutate into cancer.

Reply on news.ycombinator.com