Yeah. I read this whole post, both pages and seems like the brain strain on classic fm where they go thru 50 callers before 1 gets it right. Because its obvious. Somewhere near the beginning the poster wrote the present is the past's future. Anybody remember September 11, 2001? That action ended your flying car bullshit. Think about it. Instead of driving a van full of ammonium nitrate into the Lobby of a skyscraper now we can fly a peterbuilt semi full of it I to any skyscraper I want. Your not living in the present. You're living in your head believing your Dillusion. Don't get pissed at me, hell, I want a jet pack too. But you see right there you've got many factors to realistically ingeneer into it, it would have to be as light as smoke AND direct you by thrust alone. Plus, the only fuel to make enough miles for it to work would be compressed hydrogen and the tanks that hold them ain't as light as smoke, plus when you compress a gas it becomes a liquid. So until they create useful dark matter and synthesize antimatter in a less cost prohibitive way your jet pack is still only good enough to jump for Skyscraper to skyscraper. This is just like the faster than light travel crap. Toke up fellas. I'll take 2 hits of what y'all are having.