It's no Forrest Gump but this moving one armed robot is plenty good at table tennis. And may be even better than you. Watch it extend its arm to cover ground, cycle through backhand and forehand shots and hit the ball so effortlessly that it seems like an invisible human is controlling it.
The DIY ping pong robot UHTTR-1, which was made by Ulf Hoffman and in development for two years, hits the ball back independently to start some fun rallies. It all comes together so fluidly, the camera senses the ball, the software tells the motor where to move the arm, the aluminium construction executes the hit and it works brilliantly. Like a metal human arm. Super neat.