Bret Victor has a solid grip on interface design. And he has a beef with touchscreens as the archetype of the Interface of the Future. He argues that poking at and sliding around pictures under glass is not really the greatest way to do things. Why? Because that just uses a finger! Victor is a fan of hands. They can grab, twist, flick, feel, manipulate, and hold things. Hands get two thumbs up from Victor.
As a result, Victor argues that any interface that neglects hands neglects human beings. Tools of the future need to be hand-friendly and take advantage of the wonderful functions hands can perform. His entire article, “A Brief Rant on the Future of Interfaces” is a glorious read and deserves your attention. One of the best parts is his simple but profound explanation of what a tool does: “A tool addresses human needs by amplifying human capabilities.”
There is, as I see it, one tiny problem with Victor’s vision: hands are tools themselves. They translate brain signals into physical action. Hands are, as Victor shows, super good at that translation. His argument is based on the idea that we should take as much advantage as possible of the amazing tools that hands already are. I disagree.