Sean-Carroll

I already owed Sean Carroll a proper post. When I wrote A New Universe All Throughout The Day I admitted, almost in passing, that he was the person who really led me into taking the many-worlds interpretation seriously rather than treating it as a science-fiction gimmick. Then two New Scientist videos landed in front of me within a few weeks of each other - one titled We May Never Understand Reality and one titled Why Quantum Physics Says There’s a Multiverse - and I realised I had been circling him for months without ever writing the man down. This is me doing that. ...

I have always had this strange gut feeling that the universe is, in some sense, new all throughout the day. Not new in the dramatic science-fiction sense, where everything resets and starts over, but new in the sense that reality seems to keep unfolding into fresh versions of itself depending on what happens next. A conversation goes one way instead of another. You decide to go out, or stay in. You send the message, or you leave it unsent. Tiny differences, and suddenly the entire shape of the day changes. ...