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Unifying Foundations for Physics and Mathematics

During recent travels I attended two conferences (in Paris and Berkeley) and met up with quite a few people. At the Paris conference I gave an intentionally provocative talk to the philosophers of physics there, slides are here. The argument I was trying to make is essentially that more attention should be paid to evidence for a deep unity in much...

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I haven’t been posting here for a while, partly due to a lot of traveling, partly due to some personal time-consuming commitments, and largely due to a lack of much in the way of news that seemed worth much attention. For some examples of such news that might be of interest: Due to discovery of a buckled RF finger, the LHC start-up (at 6.8 TeV/beam)...

News and Travels

First some personally relevant items: I finally have a finished version 2.0 of my euclidean twistor unification paper (discussed here), it’s uploaded to the arXiv, should appear there Monday. I’ll be giving a talk October 30th at the Foundations 2021 conference in Paris, something about the unity of math and physics, and will take the opportunity...

This Week’s Hype

The latest from the BBC: String theory – a simple way to understand the universe Not worth more comment than it’s another reminder that this nonsense continues to be heavily promoted in our most prominent and respected mass media. I’m beginning to doubt we’re going to be rid of it in my (or anyone’s) lifetime.

String Theory and the Real World

I just noticed that Gordon Kane has recently published a second edition of his 2017 String Theory and the Real World. Columbia doesn’t seem to yet have full online access to the second edition, but one can already compare the two editions in a few places. For instance, on page 1-5 of the 2017 edition one reads The LHC is now working in a region of...

Various Math and Physics News

First some items on the mathematics side: The latest AMS Notices has some memorial pieces about Vaughan Jones and Robert Hermann. I contributed a piece to the Hermann memorial, for more about him, see here. If you read French you might enjoy Yves André’s Dix regards sur la mathématique contemporaine, freely available here. There’s a wonderful...

Visit to Brown

I spent yesterday up in Providence, visiting the Theoretical Physics Center at Brown, and giving a talk there (slides are available here, newer version of a paper here), At some point a recording of the talk should appear online. In the talk I tried to emphasize some basic things which it took me a very long time to appreciate: The ways in which...

Euclidean Twistor Unification, version 2.0

I’ve completely re-organized and largely rewritten my paper from earlier this year on Euclidean Spinors and Twistor Unification. Soon I’ll upload this as a revision to the arXiv, for now it’s available here. This new version starts from a very basic point of view about 4d geometry, leaving the technicalities about Euclidean QFT for spinors and the...

This Week’s Hype

Today Quanta has One Lab’s Quest to Build Space-Time Out of Quantum Particles. No, this kind of experiment is not going to “Build Space-Time”, now or ever. This kind of obfuscation about quantum gravity advances neither fundamental physics nor the public understanding of it, quite the opposite. The article does make clear what the motivation is: deal...

Conversations on Quantum Gravity

Things for many years now have been going badly for string theory on the public relations front. Today the Economist has Physics seeks the future: Bye, bye, little Susy, where one finds out that: But, no Susy, no string theory. And, 13 years after the LHC opened, no sparticles have shown up. Even two as-yet-unexplained results announced earlier this...

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