Computer architectures sometimes necessitate no-ops under certain circumstances to facilitate functionality. Even though they're no-ops, they're not useless.

Computer architectures sometimes necessitate no-ops under certain circumstances to facilitate functionality. Even though they're no-ops, they're not useless. To the contrary, they have very specific and required uses, which is why they exist. Evolution works on integrated systems, not parts. Which goes a long way toward explaining why life doesn't seem to have any single-use components - everything serves multiple purposes. We just don't understand them all yet.