Ethereal time travel: I could find out what really went on when religious prophets supposedly heard God's teachings. I could go back and witness the big bang if it really occurred, and even pre-big bang if there was such a time....I could find out if there really was a clear starting point to the history of the universe! I'd get to see the first lifeforms ever, dinosaurs, the first rudimentary human civilizations. Oh and I could intervene with crazy rulers like Caligula or Hitler when they were still young enough to be salvageable and prevent some of the worst human genocides. MOST IMPORTANTLY, I COULD TRAVEL A DAY OR TWO INTO THE FUTURE AND SEE WHERE THIS POST GETS ME (ಠ_ಠ)