Cool. I want a lot of things, like most of us, so I'll just share one I thought of today for unrelated reasons. I want to be able to summit Everest, without being in any danger, without spending an unreasonable amount of money, without having to train to be in better shape than I already am. I made an offhand comment today that in 50 years (maximum) I'll be able to fly up to Everest cheaply, warmly and quickly just to see it, just to be there. (And it'll be taller then!) The process I'm envisioning for this is some sort of more efficient and usable helicopter, but I'll let the future surprise me. The point is that's not something anyone ever thinks about when they get specific about the future. Anyway, just a thought I had today that seems to dovetail nicely with this link.