All the currency system has always been a house of cards, and those who were truly aware of it (bankers) always manipulated it for their benefit ("money multipliers" should ring a bell if you passed economy 101).
The bitcoin brought something truly innovative that the history of human kind never ever experienced before, it is getting rid of the bullshit and truly giving the power back to the people.
You are wrong by saying that it is not backed on anything, it is backed on math and in trusted cryptography. By the way, don't use the word Ponzi if you don't understand what a ponzi scheme is all about, it is not a synonym for con or fraud, it is a very specific type of fraud.
For the engineers, it is one thing less to worry: yes, it matters.
That is their universal constant, their spaceships speeds are measured by toes per nanoseconds, and a million toes are called a stampede.
I could think of all kinds of interesting things to try to get 3D images of with this software, why are all the examples only of someone's face?
Precisely, who in his right mind would scan a face?
The first picture a normal sane male would take is his penis.
That, plus other variables that I've left out, makes me feel very confident of my conclusions.
I have a personal theory that tries to prove that advanced civilizations can not be hostile (or to be more prudent, it is very improbable), I might finish the essay one day but my arguments are quite strong. But the thing is, I wonder what could I do with it once I finish it.