I was referring to that, though obviously it is a long ways off. Though a long time is vague so who knows how long that would be. Though if we reach anti-aging and live a lot longer, that would be a significant step in helping people to survive until we reach technology like that.

I really do believe that nothing is impossible if you can gain a deep enough understanding of the world. There may be limits on things we can do, and things that are just impossible, but it is very difficult to tell what that may be. If you look at our understanding of the world today we know a great deal, and we can manipulate stuff even at atomic levels. There is no saying what a thousand or ten thousand more years of development might mean for physics. It is possible we could learn to manipulate the world around us in ways we still couldn't comprehend.