Note though, this would be really hard to evolve. As an analogy, the photosynthetic center RuBisCO is fairly wasteful, so any organism that can improve on RuB

Note though, this would be really hard to evolve. As an analogy, the photosynthetic center RuBisCO is fairly wasteful, so any organism that can improve on RuBisCO would have a huge advantage. Only problem is RuBisCO is not easily evolvable (like brittle code), thus we don't know of any improvements although they are quite possible theoretically.