Here is the proof.

3D Printing
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1

Here is the proof.
http://www.fastcodesign.com/1673016/9-ways-3-d-printing-makes-the-world-better#1

2

Great article; I have recently been interested in ways to improve the functionality of prosthetics. Nice read.

3

It’s a great technology is some aspects but I don’t like propaganda. Each of those 9 things could have been done with another solution than 3D printing. And prosthetics is far down in the list of things that would make the world better.

4

The 3D printed cast is ‘art’ - was designed by someone without any medical background and is completely impracticable.