- I gave a talk the other day at Caltech about Boltzmann Brains: when they occur, and why you shouldn't like theories that predict them. An important underlying idea is an understanding of "quantum fluctuations" that is a little more nuanced than what we get in most discussions -- I talked about this with Kim Boddy and Jason Pollack in our conference-proceedings paper arxiv.org/abs/1505.02780. Here's my quick Twitter version of that discussion.
- All of which is crucial for understanding Boltzmann Brains. A topic for another day. For more see: http://arxiv.org/abs/1505.02780 #qf
