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- Euclidean Twistor Unification, version 2.0 23

Lowell Brown, Peter Woit, Peter Orland, Shantanu, DKepler, Peter Woit [...] - Conversations on Quantum Gravity 40

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# Author Archives: woit

## 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 … Continue reading

Posted in Euclidean Twistor Unification
23 Comments

## 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 … Continue reading

Posted in This Week's Hype
17 Comments

## 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. … Continue reading

Posted in Book Reviews
40 Comments

## Some Math Items

Some math items that may be of interest: Zentralblatt Math has a review of Mochizuki’s IUT papers, by Peter Scholze. Scholze explains the problem with the proof claimed in these papers. For more details, see his manuscript with Stix, or … Continue reading

Posted in Uncategorized
8 Comments

## More of the Same (Physics, Math and Unification)

I was going to just provide the following links with a some comments, but decided it would be a good idea to put them into what seems to me the larger context of where we are in fundamental physics and … Continue reading

Posted in Euclidean Twistor Unification, Langlands
Comments Off on More of the Same (Physics, Math and Unification)

## Steven Weinberg 1933-2021

I heard this morning the news that Steven Weinberg passed away yesterday at the age of 88. He was arguably the dominant figure in theoretical particle physics during its period of great success from the late sixties to the early … Continue reading

Posted in Obituaries
18 Comments

## The Problem of Quantization

I’ve been watching Witten’s ongoing talks about geometric Langlands mentioned here, and wanted to recommend to everyone, mathematician or physicist, the first of them, on The Problem of Quantization (pdf here, video here, the question session is very worthwhile). For … Continue reading

## Deterioration of the World’s Thinking About the Deepest Stringy Ideas

For quite a few years now, I’ve been mystified about what is going on in string theory, as the subject has become dominated by AdS/CFT inspired work which has nothing to do with either strings or any visible idea about … Continue reading

Posted in Strings 2XXX
9 Comments

## Even More Langlands

Various news at least tangentially related to the Langlands program: Cambridge University Press this month is publishing a volume edited by Julia Mueller, entitled The Genesis of the Langlands Program. The chapters by various authors concentrate on Langlands himself and … Continue reading

Posted in Langlands
3 Comments

## Strings 2021

Strings 2021 started today, program is available here. Since it’s online only, talks are much more accessible than usual (and since it’s free, over 2000 people have registered to in principle participate via Zoom). Talks are available for watching every … Continue reading

Posted in Strings 2XXX
34 Comments