When Rewards Learn to See: Teaching Humanoids What the Ground Looks Like
Robots do not fall because the word “walk” is ambiguous. They fall because the ground has opinions. A flat floor, a gap, a pile of blocks, and a staircase may all ask for “locomotion,” but they do not ask for the same behavior. One asks for velocity tracking. Another asks for foot placement. Another punishes careless exploration. A staircase, because it has a flair for drama, asks the robot to negotiate gravity one step at a time. ...