Of course, you need to take into account that the more people do this, the probability of natural accidents are higher given that this would basically stop evol

Of course, you need to take into account that the more people do this, the probability of natural accidents are higher given that this would basically stop evolution/adaptation. So you will have to engineer a lot of other things to compensate. > Curing aging isn't immortality. You die at 600 on average by accident. So the problem is reduced to having a good body shield and few extra planets.