granted, Al Gore goes back in time in his green Time machine then steals the position of president, the world is great! unfortunately, due to the time paradox that makes it so you don't need to make this wish, everything reverts to its normal state
Your computer is better then you. It advances its technology and uses stuff in the printer to create a laser. It shoots the laser at you then uploads its betterness to the internet to the other computers and robots take over the world. GAME OVER.