"Physics was never my strong suit," he says, but the sparkle in his eye says he understand the explanation and he's just being funny.

He reaches into a pocket and fishes out his own PINpoint. He got a model that's designed to look like a pocket watch. Generally speaking, items are safer in his pockets than attached to his wrists; he does a lot of punching.

"These devices. They're pretty common around the Nexus. You can use them to transport places, and communicate through texts or emails."