I'd be in old category too. I hope I dont stay alive when my body stops functioning. I don't want to be burden on this world to get me to cross road or being taken care of.
In 50 years time, I will be in the old category (provided I'm still alive). I am curious to see how much things will change in those 50 years but I'm like @overcast because I don't want to be a burden on others when I get older.
I am sure in next 10 years we would be seeing medicines that can keep us healthy and may allow surgeries that keep us long enough.. but I am not rich to have access to many things. So yeah I will be surely limited.
50 years. Not sure what I would be up to, as being in my 80's would sound like I am asking to retire somewhere, where my body can handle a stable environment.