I believe these are very different problems. Aubrey de Grey believes they are not different. If he's right, the only way you could keep people perfectly healt

I believe these are very different problems. Aubrey de Grey believes they are not different. If he's right, the only way you could keep people perfectly healthy up to age 80 without them living much longer would be to execute on his plan (or a similar one), and then kill people once they got old enough.