notch@notch·Sep 1People focus way too much on how NAND and NOR are "universal". The true key to computation is NOT, ie the ability to negate a signal. AND and OR are trivial in almost any predictable system, as SOMETHING has to happen if you combine inputs.2516248
notch@notch·Sep 1I have yet to come across any real life system that lets you invert a signal for free however.163110