Because we've come to realize that the expression "live your future" is about taking care of tomorrow today. Meaning, doing all the things you equally well could do today instead of post poning it to the next day. And doing this with joy by seeing your future self as a friend whom you want to make life as easy as possible for. If you act thoughtful towards yourself, the slacker you can have a nice day once in a while, instead of just waiting for the day goody-two-shoes-you will appear and take care of last weeks messes. And, because Gregory Peck is most likely the world's most handsome man both present and future.