Dene
Premium Member
Secondly, why is it that by keeping people alive they are going to spread their genetic disease? What diseases do you have in mind exactly? Most people with serious genetic diseases still do not stay alive long enough to reproduce. If they do, they would have whether we could do anything about the disease or not. Before you try to counter argue I expect you to provide a good example of a genetic disease that would otherwise kill, but due to us keeping these people alive they are able to reproduce and spread their disease.
Easy: Myopia (not a disease I guess but certainly a condition that is hereditary). Back in the day people with bad vision would have been eaten by saber tooth tigers. Now with corrective lens technology they can all live to pass on their genes.
Sickle Cell Anemia.
Haemophilia.
Plenty of diseases are considered "treatable" now due to modern medicine, even though natural selection would dictate they be eradicated.
I'll tackle Haemophilia since sickle cell anemia has already been accounted for:
Whilst in severe instances you are probably correct in saying that by natural selection these people would be killed. But the less severe cases are unlikely to kill before reproductive age in a "natural selection" scenario anyway.
But this is nice because it illustrates the other point I was trying to make: while there is no actual cure for haemophilia at the moment, the knowledge we have of it will allow for us in the future to eradicate the disease entirely, while anyone that would have died would be able to live a healthy life without the disease at all.