Not trying to start anything (just giving my own personal opinion), but haven't our technologies been doing the natural selection for us? We invent the technology, and it helps us survive, but based on our technology is what ensures we survive. Now, due to our technology, we don't have any natural predators aside from ourselves, so is this really natural selection? What is selecting us that makes it natural? Our weapons can kill and we cannot adapt to fight our own weapons since they kill so fast and well. This is natural?
We have sickly/disabled/weak genes in our society, if natural selection still existed in us, would they be here? Would there be people who are less able? By saving and ensuring everyone can survive and reproduce (including the weak), are we not weakening our genes? Are we not leading us to our own demise? This continuing, wouldn't our genes become so filled with problems that should've been eradicated during natural selection? We are ethical beings, we wish for everyone to survive. But isn't this leading us to a weak future? Of course I don't want to go out and just kill all the less able people heartlessly, but isn't this something we are bringing upon ourselves?
everything must come to an end eventually. to think that our existence on this earth is perpetual, is a blind belief in itself.