To all the folks with negative opinions of this work: you guys are nuts! This work is incredible. Is it the end of the line yet? Of course not, but come on! This is unbelievably cool, and who of you would have predicted any of this ten years ago?
For me, peace in society, a nice world where humans can share what they create, and nature outside and preserved are all much better than "cool", and this "cool" tool threatens all of the above.
It's incredible in the same way an AK-47 is incredible. This sort of thing is going to uproot all of culture and god knows what happens after that.