I think that scientist should not try to beat old age unless they have a way to make you feel perfectly healthy so you can keep doing your normal day to day tasks. Because if you can't do what you used to then you have to find another way to get it done. Also if you feel like crap all the time because you are not healthy then their isn't any point in living.
I would want to live forever so I could teach people things that I have learned because I have lived forever.
Yes I do because if you can live longer but suffer while you're trying to live, that isn't living so that wouldn't be living it fuller.