Andrew Jaffe
@defjaf
Astrophysics, cosmology, Bayesian inference, parenthood, politics, rock ’n’ roll, & more. Professor at Imperial College. He/him/his The Random Universe—available now!
This is only of niche interest, but it’s great to be at the Sterrewacht group at the University of Leiden, drinking from an old-school early-90s vintage CITA (Canadian Institute for Theoretical Astrophysics) mug.
The heat has broken just in time for us to have forgotten two of our sleeping bags on our camping trip.
Happy to find myself on a bookshelf with Damian Hirst, Nick Cave and Manolo Blahnik.
Invigilating (good British word) for the first time in a couple of years — year 4 Information Theory. Good luck!
Failed sourdough. Icarus-like, it rose too high and fell too fast. (Tasted ok, but a bit dense.)
In honor of the coming vernal equinox, my first cycle ride into work since October.
Thanks to Richard Marshall — and a fantastic audience, especially! — for a great evening of cosmology, cosmological tensions, and beer @pubsci.bsky.social
Holiday buns. Finally perfected with the third batch of the season. (6/12)
Surprised that Taylor needs to promote her latest with an A4 poster at the Imperial College elevators (lifts).
This seems like a whole mess of bugs. (Trying to update to macOS 26 Tahoe. Perhaps this is telling me it’s a bad idea?…) > `PASSWORD_ALERT_TITLE_WITH_USERNAME_OSX_REBRAND_SERVICE_ICLOUD` > `PASSWORD_ALERT_MESSAGE_WITH_USERNAME_OSX_REBRAND` > `FOL... https://andrewjaffe.net/microblog/2025/09/1062/
Spent the night with the family in the Frassenhütte at the top of an Austrian Alp… … followed by our trek down the mountain in pouring rain, hail, thunder and lightning (and inappropriate clothing).
Spent the night with the family in the Frassenhütte at the top of an Austrian Alp.