It seems that the entire idea of currency is to act as a trusted means of recording exchange and debt. Of all the functions of money, which one is being improved by this proposal?
What’s actually different between this and Bitcoin? I don’t understand what the benefit of having two non-legal currencies instead of just one. The idea of wasting electricity to generate unbacked currency doesn’t make sense to me.
I was thinking of this same sort of thing for a diet site. Rather than count calories, just photograph your plate with your hand next to it, and have the computer calculate for you.
The main issues I see with doing this in a fridge would be viewing angles and telling the difference between an old carton of OJ and a new carton of OJ.