I've been toying with the concept that perhaps we're already
  time travelers and that it's so commonplace, that we don't even
  notice it happening. Just look at our languages.* We have
  fiction.* Could, Would, Should, Might, Did, Will, .. all things
  not happening _now_. Even though our bodies seem to go forward,
  our minds freely travel interdimensionally in everyday speech,
  going forward, backwards, skipping around, investigating
  alternative possibilities, coming up with universes that we
  don't see.... *Why are we even able to do it at all?* That
  amazes me.