It is an interesting problem. You obviously can't do it with gear reduction as you would need more gears than is material for making them in the universe. The

It is an interesting problem. You obviously can't do it with gear reduction as you would need more gears than is material for making them in the universe. The idea would be to make a mechanical computer that spins the last wheel based on some computation, but then, there is the problem that the state would be googol-sized, which wouldn't fit in our universe either. Is there a way? We probably need fancy physics for that. Quantum effects, maybe?