Andrew Jaffe

Astrophysics, cosmology, Bayesian inference, parenthood, politics, rock ’n’ roll, and more. Professor at Imperial College. @[email protected] He/him/his

[Andrew Jaffe @defjaf]

@WKCosmo Well, I’d like to think my recent book, The Random Universe fits the bill. https://t.co/JvbkfZpbcG

[Andrew Jaffe @defjaf]

Parliament seems to understand that the cuts to particle physics, astronomy, and nuclear physics don’t make sense.

[Science, Innovation and Technology Committee @CommonsSITC]

We've published a letter to DSIT and UKRI about the funding pressures at Science and Technology Facilities Council, which could put some areas of scientific research at risk.

Read it here: https://t.co/dveodmx1VD

[Andrew Jaffe @defjaf]

Andrew Jaffe: The Planck Satellite observes the Random Universe https://t.co/ZpFKxsgJOq via @YouTube

[Andrew Jaffe @defjaf]

You can hear me discuss my new book, The Random Universe, with my colleague Brian Keating on his excellent Into the Impossible podcast. https://t.co/wyOrKluudu

[Prof. Brian Keating @Briankeating]

Is the Universe pre-determined or random? In this conversation, @defjaf dives deep into why the universe may be fundamentally, intrinsically random. Plus:
Is inflation on life support?
What's the truth behind the Hubble tension?
Is cosmology is approaching the event horizon, limits beyond which humans can never know?

[Prof. Brian Keating @Briankeating]

Is the Universe pre-determined or random? In this conversation, @defjaf dives deep into why the universe may be fundamentally, intrinsically random. Plus:
Is inflation on life support?
What's the truth behind the Hubble tension?
Is cosmology is approaching the event horizon, limits beyond which humans can never know?

[Andrew Jaffe @defjaf]

@CburgesCliff @WKCosmo I suppose that’s technically true, but I’m not sure it’s a useful way to describe anything which compares a local (more traditionally gauge-invariant) quantity with other quantities chosen on some hypersurface (e.g., overdensities, or anything defined by harmonic transforms).

[Andrew Jaffe @defjaf]

@martinmbauer Except that Δ is absolutely horrible notation for the Laplacian.

[Andrew Jaffe @defjaf]

@AnkerOfficial I am in Japan and would like to purchase a portable wall charger (like the 737 or 747). Which of your chargers feature interchangeable plug adapters? Is this information listed anywhere?

[Andrew Jaffe @defjaf]

Nobel prize in physics for the development of machine learning techniques. Interesting choice — incredibly consequential (it lies behind large language models like ChatGPT etc), but arguably not “physics”. https://t.co/U0zsPxDtNo

[Andrew Jaffe @defjaf]

Running the @X iPad app on macOS has started crashing on launch for me. Anyone else? Any ideas? Bug or feature?

[Yashar Akrami @YasharAkrami]

"The Bizarre Shape of the Universe"

Watch this YouTube video about COMPACT (@CompactCollab) and our PRL paper on cosmic topology:

https://t.co/kip75qhuQp

Thanks a lot, Elizabeth Fernandez (@SparkDialog), Jade Tan-Holmes and Tom Groenestyn for creating such an incredible video!

[Andrew Jaffe @defjaf]

@PenguinUKBooks Any plans for an ebook edition of Robert Caro’s The Power Broker now that one is available in the US?

[Andrew Jaffe @defjaf]

@skdh Mathematics is an analogy.

[Prof. Brian Keating @Briankeating]

12/ 📚🔬 We chat about Marc's paper with Wang & @defjaf called the Polarization Pursuers Guide. The paper presented the possibility of measuring B-mode polarization of the CMB experimentally, inspiring me to design the experiment called BICEP which led to @BICEPTWO & @BICEP_Keck.

[Andrew Jaffe @defjaf]

Aha, the problem goes away when I turn on a VPN. But why?

[Andrew Jaffe @defjaf]

@TripIt I can’t seem to access your services from the web or app right now:

[Andrew Jaffe @defjaf]

@DScol @abigail_j_lee Seems like the bottom line is “underestimation of systematic errors” rather than “supports the Hubble tension story”?

[Andrew Jaffe @defjaf]

@joezuntz Congratulations!

[Edwin Hayward @edwinhayward]

It is extraordinary that the USA gets treated to a dismantling of the Tory party orders of magnitude better than the tame efforts anyone dares attempt here.

(And no, it's not the swearing that makes the difference - it's the accuracy of the attacks.)

[Andrew Jaffe @defjaf]

Me, talking topology.

[Imperial Science @ImperialSci]

Here's your Monday afternoon listen 🎵📻

Professor Andrew Jaffe (@defjaf) from @ImperialPhysics was on @bbc5live to discuss his investigation into the shape of the universe 👇
https://t.co/4yNXbWC8Aj