alt Hacker News > The gold-medal task is to hang an inside-out dress shirt, after turning it right-side-in, which we do not believe our current robot can do physically, because the gripper is too wide to fit inside the sleeve
Think about a sock (same principle will apply, but easier to visualize). You scrunch up the sock so it's like a disk. Then you pull to invert.
This can be done with any piece of clothing. It's something I do frequently because it's often easier (I turn all my clothes inside out before washing).
With those grippers, though? There's a lot of difficulty in making it scrunch up a sock, and a sock does fit. Doing a long sleeve completely unanchored is probably physically possible with extreme care but I see why they mark the robot down as physically unable.