> what do you mean by "irrevocable"? Very good point, who knows! I guess whatever the universe can't pretend didn't happen, like a photon being absorbed and r

> what do you mean by "irrevocable"? Very good point, who knows! I guess whatever the universe can't pretend didn't happen, like a photon being absorbed and re-emited by an electron. Which, what does that even mean? I don't know! Does anyone? I don't know!