I had a debate recently with an aquaintance about whether or not humans are ruining the evolutionary process. His point was that by having medicine, vaccinations, life support, surgery etc. that inferior people were being allowed to stay in the gene pool and pass on their poor immune systems/weak muscles/inferior organs etc. I, of course, agreed that medicine etc. is allowing people with weaker immune systems to breed and pass on their genes for poor immune systems on, but I didn't think it was ruining evolution. The point I made was that humans are following the same routine that most dominant animals do, but to an exagerated extent. Since humans don't have the harsh life that animals do, more people with traits that are traditionally considered inferior are allowed to survive, but that also allows more random mutations to occur. With an animal like a tiger, there's a specific type of tiger that works best in a specific environment, and so most tigers follow that formula, have some variation that helps them or die off. But with humans, we have life relatively easy, and the random variaitions that develop (I feel) will help us as a species when some major stuff goes down and kills a bunch of us. Anyone have thoughts on this?