Hod Lipson — American Scientist

Hod Lipson is an American robotics engineer. He is the director of Cornell University's Creative Machines Lab, formerly known as Computational Synthesis Lab, at the Sibley School of Mechanical and Aerospace Engineering. Lipson's work focuses on evolutionary robotics, design automation, rapid prototyping, artificial life, and creating machines that can demonstrate some aspects of human creativity. His publications have been cited close to 10,000 times, and he has an h-index of 50, as of November 8, 2015... (wikipedia)

3D printing is already shaking our age-old notions of what can and can't be made.
We've seen computers play chess and beat grand masters. We've seen computers drive a car across a desert. But interestingly, playing chess is easy, but having a conversation about nothing is really difficult for a computer.
Restrictions are difficult to enforce in a world where anybody can make anything.
If you gave kids peas that didn't look like peas and said they were a space shuttle, they're much more apt to eat them because it's now playtime.
The only way to make something cheaply today is to have it mass-produced. For example, you wear the same shoes as everyone else. If you had a fabber, you could custom-make shoes that perfectly fit your feet. Three-dimensional printing will help us move away from the mass consumption that is so deeply ingrained in our culture.