3 ms·
How is that supposed to work? The pressure of natural selection has already stopped in most countries, individuals that would have been removed from the gene po
by MrBuddyCasino 11y ago
How is that supposed to work? The pressure of natural selection has already stopped in most countries, individuals that would have been removed from the gene pool in more resource constrained times can now reach old age. And that is a good thing!
We would be venturing into genetic engineering to breed "space humans", which is at least problematic.
- datashovel 11y agoGood question. I feel natural selection works in more ways than just "survival of the fittest" sense of the term. For example, for millions of years our bodies have become adept at precisely the amount of gravity Earth pulls on our bodies. Whether or not that has affected the species ability to reproduce, or if it's consequential to our ability to live comfortably in space, is another question, but I feel there are more ways evolution has affected our genes (to be more perfectly adapted to Earth's environment) than we may realize.
- milspec 11y agoNatural selection has not stopped ant can not stop. Here in the USA, currently trans fats are killing people. Some people can tolerate trans fats more than other people can. We evolve to tolerate them. The same goes for every other not-good-for-you kind of thing we eat. People who tolerate it (or find it nauseating) will survive longer. Now that many do survive to old age, natural selection can work to eliminate menopause. Today there are those who hit it at 30 and others who hit it at 50 or even later. Some leave more offspring, and this is all that is needed to drive natural selection. We evolve, and always will.