When you talk, you gesture. You use your hands to give commands, hurl insults, show appreciation--you communicate, on a basic level--and it's all instinctive. Other people, assuming they've been raised with your particular culture's gestures, understand you. It can be more concise, more elegant, than using your words. And I came to see multitouch in the same way. I wasn't using my words, or my keyboard, to instruct my computer on how I wanted it to work. I wasn't using the old system of mousing, which is reliant on moving a cursor and selecting individual buttons, like flicking switches in an old airplane cockpit. That's all gone. It's not a keyboard, and it's not a mouse. It's better than both. Why bother with menus, commands, strings of input, or button-clicking when a swipe is so much more natural and universal?