A Two-Dimensional Future?

Former Apple engineer Bret Victor rants against a vision of the future that revolves around flat screens, or what he calls Pictures Under Glass:

We live in a three-dimensional world. Our hands are designed for moving and rotating objects in three dimensions, for picking up objects and placing them over, under, beside, and inside each other. No creature on earth has a dexterity that compares to ours. … With an entire body at your command, do you seriously think the Future Of Interaction should be a single finger?

(Hat tip: Josh Rothman)