I'm pretty obsessed with time travel. The fact that leading physicists actually believe that some form of travel across time could be theoretically possible makes my Spidey-Sense tingle. Unfortunately that sort of time travel probably won't happen in my lifetime (unless you have a spare time machine you're willing to loan me).
There is, however, another way. Utilizing your own social media posts and pics, you can travel back to your own past with an app called 'Timehop.'