Because of things like this:
There’s a serious personal reward to projects like that. I do love how there’s even a trigger mode.
My wife just sat staring in astonishment. Her dad has a prosthetic from an industrial accident. While he doesn’t have smart limb, he does have a quite high tech limb that flexes and moves naturally. Most people don’t even realize he has one unless he’s wearing shorts.
10 years ago, this type of stuff was still fantasy for the most part. The amount of processing and input gathering required limited the ability to create something usable. Moore’s law is a freaking awesome thing.