You may have thought the Embody chair was all very high-tech…but it’s got nothing on Oki’s protoype Leopard chair. It’s got a robot-leg in its design. Based on Oki’s well-named Robot Leg walking robot, the chair is motorised: when empty it perches up in the air, waiting for your butt to settle against it. When you do so, the leg contracts and winds you backwards and down into an ideal position with “seating comfort akin to being held in someone’s arms,” apparently.