At least in the movies...
p.s. Time travel flick Looper is in theaters today, with a money time travel quote: "If we start talking about it, we're gonna be here all day, talking about it, makin' diagrams with straws."
The Internet proves comedian Louis C.K.'s great theory -- "I can get in a time machine and go to any time and it would be f**kin' awesome when I get there!"