I'd much rather go into a portal in the clouds than a portal in a dark n dirty rabbit's hole! :) First, I need wings. Or a tractor beam! I'm not sure I could tire of the glitz and glamour up there though ;) though I suppose returning to a different time period could be interesting. Would it be the same reality? Would we retain our knowledge of the future? Would everything we know eventually come to pass and we could help shape it? Hmmm..