everything is quantum. it's just convenient to deal with the emergent behavior instead (like "chemistry"). yes, photosynthesis is quantum. so is vision, smel

everything is quantum. it's just convenient to deal with the emergent behavior instead (like "chemistry"). yes, photosynthesis is quantum. so is vision, smell, etc. heck, metabolism is quantum! but these are fast and local, because most of the world is decoherence-friendly. the quantum effects of a photon in your rod cell is not going to cause any quantum weirdness in a smell receptor in your nose.