Of course what I say is not feasible at the moment, but as a thought exercise, I'd rather re-cycle through life rather than potentially extend life more or less indefinitely, because, as I see it, as you grow older, you start tiring of things. You tire of others' silliness or injustice or immaturity or seriousness or selfishness or suffering and one could more easily become disillusioned. Re-cycling through, at least you go through the learning and pains again, so all those ills aren't that distant or unsavory, they're more personal.

So difference is live one life to 500, or

Live 5x100. Come back at 10 or 1 or whatever. I know this idea is totally fantastic, but, as a thought experiment, I'd prefer this.