This question is for Wayne and anyone else with insight on this... I see time travel, dimension portals, etc. used all the time in fantasy and science fiction. When I start to toy around with similar ideas for my works-in-progress, I start to second-guess and triple-guess myself. I can't think of anything wholly original - and I most certainly can't think of anything that passes muster with respectable science, physics, etc. Should I let this hold me back? Does anyone have any advice on how to get around this kind of hang-up?