Now that we've passed October 21, 2015 (the date that Marty McFly and Doc Brown traveled to in the 1989 film Back to the Future, Part II), not to mention the thirty-year landmark of the 1985 original, you could either say the "future" is now, or it's in the past. And yet, the "future" is still ahead of us.
A few weeks ago, somebody asked me if there was a part of the past I'd like to visit or a part of my past that I'd like to change. A few years ago, I had thought about going back to my junior prom and telling my younger self not to worry about prom, nor about the person I had feelings for then, but to instead be content that he was there with friends and could still have a good time.
I now know that the past cannot be changed (as it was in Back to the Future). It can only be learned from, reported from, and matured from. There's a great interview Will Smith gave three years ago where he said something similar. In addition, there is some truth when Doc Brown said, "You're future is whatever you make of it. So make it a good one."