My original idea was to use drops of water with something like phenolpthalein, which turns different colors when pH changes, or something like that. That might work better because there are no moving parts involved. This is a detail. Don't bug me with details.
Hrmph. Also, since light is used, it frees up "chip" designers [semi-conductors now heading the dinosaur route] to design in 3 dimensions and gets rid of the clock [it was the alternating current scheme that gave designers the clock in the first place]. I suggested using the hardware equivalent of stacks and queues and a "feeder" that determines order of execution of an instruction. That way, processes are run asynchronously and in parallel. I'm pretty good at hardware too.
