Leap Motion is a gesture based control system that plugs into any computer’s USB slot.

Have you ever thought about what your brain has to compute when using a computer mouse? Since the 1980s, anybody who has used a mouse to open a file, drag and drop, or right-click for options, had to process that what they were moving with their hand off to the side – out of view, while they simultaneously controlled things on an upright screen in front of them. This extra brainwork is why touchscreens make so much sense. The pinch/pull and slide gesture-controls are so intuitive because these are how we assume we should use a two-dimensional space in front of us.

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