Category Archives: Uncategorized

The Mathematical Question From Which All Answers Flow

I’m beginning to suspect that there are actually (at least) two different theoretical HEP physicists named Nima Arkani-Hamed out there. One of them (who I’ll call Nima1) believes the way to understand the fundamental nature of physical reality involves extremely … Continue reading

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Various and Sundry

First a couple of items from Paris: Fields medalist Cédric Villani is campaigning for the position of Mayor of Paris. This Sunday there will be a campaign event/book launch for his new book, Immersion: De la science au Parlement. The … Continue reading

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Where in the World are SUSY and WIMPs?

Back in 2017, after it had already become clear that negative LHC results about SUSY and WIMPs had falsified theorist’s most popular scenarios for how to extend the Standard Model, Nima Arkani-Hamed gave a summer school talk to students with … Continue reading

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On Inference

The first issue of the magazine Inference appeared online back in 2014. At the time, it was surrounded by a significant amount of mystery: who were the editors, what were they trying to do, and who was funding it? I … Continue reading

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This Week’s Hype (and a couple other things)

For today’s university press release designed to mislead the public with hype about string theory, Uppsala University has Our Universe: An expanding bubble in an extra dimension. It’s the Swampland variant of string theory hype, based on this preprint, which … Continue reading

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The Chronic Incompleteness of String Theory

Ex-string theorist turned philosopher Richard Dawid has become known over the years for his arguments that string theory is a theory to be evaluated not by the conventional scientific method, in which experiment plays a role, but by “post-empirical theory … Continue reading

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Notes on Current Affairs

Blogging has been light recently, partly due to quite a bit of traveling. This included a brief trip the week before last to Los Angeles, where I met up with, among others, Sabine Hossenfelder. This past week I was in … Continue reading

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Langlands/Frenkel and Some Other Things

The Canadian publication The Walrus today has a wonderful article about Robert Langlands, focusing on his attitude towards the geometric Langlands program and its talented proponent Edward Frenkel. I watched Frenkel’s talk at the ongoing Minnesota conference via streaming video … Continue reading

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Updates

Based on this preprint from Banks and Fischler, I added an update to the FAQ entry about why the ever-popular “string theory makes predictions, but only at high energies where they can’t be tested” argument is not true. This preprint … Continue reading

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Breaking News

Two midday breaking news items: The ACME II experiment is reporting today a new, nearly order of magnitude better, limit on the electric dipole moment of the electron: $$|d_e|\leq 1.1 \times 10^{-29} e\ cm$$ The previous best bound was from … Continue reading

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