The Mario philosophy
When the game begins, Mario is standing all the way to the left of the legendary opening screen, and he can only go in one direction. He can only move right, as new scenery and enemies scroll from that side. He progresses through eight worlds of four levels each, all of them governed by time constraints, until he reaches the evil Bowser and frees the captive princess Toadstool. Throughout all thirty-two levels, Mario exists in front of what gaming parlance is called an invisible wall, which doesn’t allow him to go backwards. There is no turning back, only going forward – for Mario and Luigi, for me and you. Life scrolls only in one direction, which is the direction of time, and no mater how far we might manage to go, that invisible wall will always be just behind us, cutting us off from the past compelling us on into the unknown.
-Permanent Record, Edward Snowden.