Hopefully, less than 20 years from now we can use full-body interaction with technology.
“The core idea behind TouchTools is to draw upon user familiarity and motor skill with tools from the real world, and bring them to interactive use on computers. Specifically, users replicate a tool’s corresponding real-world grasp and press it to the screen as though it was physically present. The system recognizes this pose and instantiates the virtual tool as if it was being grasped at that position. Users can then translate, rotate and otherwise manipulate the tool as they would its physical counterpart.”