Any wire propagation would work, zero or positive, as long as it is deterministic (it can all be compensated by extra NAND/NOR gates). And with negative propaga

Any wire propagation would work, zero or positive, as long as it is deterministic (it can all be compensated by extra NAND/NOR gates). And with negative propagation delays you could do wonders! Anyway, my comment was a quick jab to circle back to Lisp after parent dismissed its elegant core.