The other problem with teaching at 5pm is that I spend the whole afternoon beforehand thinking about my lecture.

First undergraduate cosmology lecture in about 13 years. Too many slides today, but looking forward to 25 lectures of good old-fashioned chalk-and-talk.

We want to make sourdough. Should I buy starter, or try to make my own?

Podcast appearance: listen to me talk about The Random Universe (the book, and the Universe itself) on Sean Carroll’s Mindscape. We cover epistemology, probability, quantum mechanics, cosmology and more. Sean and I were cosmology grad students at the same time, and it was a pleasure and an honour to spend time with him online.

The clocks went back an hour here in London overnight—summertime is over. I suppose I’m happy for the extra time to rest (though in fact I didn’t sleep very well last night) but not looking forward to six months of early darkness.