Photosynthesis

Quantum Biology: does life run on the quantum realm?

Life is quantum, the headlines say: photosynthesis exploits quantum weirdness, birds navigate with entangled electrons, the warm wet cell runs on physics we thought was far too delicate to survive there. Parts of it are true. But the three famous examples get told as one, and they are not equal. The most famous is the shakiest, the most solid rarely gets mentioned, and the most beautiful is still unproven. A five-minute read, no physics needed.