“instruction encoding is by necessity serial. Or is anyone proposing we should switch to higher-dimensional code” That is sort of a thing: https://en.m.wikiped

“instruction encoding is by necessity serial. Or is anyone proposing we should switch to higher-dimensional code” That is sort of a thing: https://en.m.wikipedia.org/wiki/Very_long_instruction_word https://en.m.wikipedia.org/wiki/Very_long_instruction_word If you have multiple instructions grouped together like this you could think of it as being a 2D array of instructions