Quite awesome, though I have to wonder how much computing power goes into reading the zero's and one's, controlling the servos, powering the led display, programs, etc. relative to the amount of computing power of the turing machine itself. A ratio of 10,000 to 1? A million to 1? A billion?
Isn't the whole point that they are equivalent? Both can calculate anything that can be calculated (in finite space, since both are limited by the finite length of the tape / size of RAM).
