Author Archives: woit

A Few Items

Some short items and links: Among possible futures that I never would have dreamed of during my student days was that someday my Nobel-prize-winning undergraduate advisor would “try to rile” my Nobel-prize-winning graduate school professor at a Bohr Centennial celebration … Continue reading

Posted in Uncategorized | 32 Comments

ICM 2022 and the Invasion of Ukraine

The news this evening that Russia is sending troops into the Eastern Ukraine and in effect announcing annexation of at least part of the Ukraine carries extremely disturbing implications for the whole world. On a much more minor scale of … Continue reading

Posted in Uncategorized | 51 Comments

Seminar talk on Euclidean Twistor Unification and the Twistor P1

Today I gave a talk via Zoom at the Algebra, Particles and Quantum Theory seminar series organized by Nichol Furey. The slides from the talk are here (I gather the talk was recorded and video might be available at some … Continue reading

Posted in Euclidean Twistor Unification | 17 Comments

This Way to the Universe

There’s a new popular book out this week by string theorist Michael Dine, This Way to the Universe, as well a a new Sean Carroll podcast interviewing him about the book and the state of particle theory research. According to … Continue reading

Posted in Book Reviews, Multiverse Mania | 9 Comments

Notes on the Twistor P1

I’ve just finished writing up some notes on what the twistor $P^1$ is and the various ways it shows up in mathematics.  The notes are available here, and may or may not get expanded at some point.  The rest of … Continue reading

Posted in Euclidean Twistor Unification, Langlands | 8 Comments

This Week’s Hype

For many years, editions here of This Week’s Hype were mainly devoted to bogus claims that someone had found a way to get a testable prediction out of string theory or other “evidence for string theory”. Recently there have been … Continue reading

Posted in This Week's Hype | 30 Comments

Yet More Math and Physics Items

Various items that may be of interest: Robbert Dijkgraaf was sworn in a few days ago as Minister of Education, Culture and Science in the Dutch government. Unclear who if anyone is director of the IAS at the moment, but … Continue reading

Posted in Uncategorized | 11 Comments

Igor and Grichka Bogdanoff 1949-2021/22

A few days ago I heard news from Paris of the death of Grichka Bogdanoff on Dec. 28, and this morning heard of the death yesterday of his twin brother Igor. There are many news stories online (e.g. here), and … Continue reading

Posted in Obituaries | 21 Comments

Witten Goes Anthropic

Multiverse mania started seriously among string theorists around 2003, with a defining event Susskind’s February 2003 The Anthropic Landscape of String Theory. At the time I was finishing up writing what became the book “Not Even Wrong”, and my reaction … Continue reading

Posted in Multiverse Mania | 41 Comments

More Math and Physics Items

Yet more math items: First of all, congratulations to my colleague Johan de Jong, recipient of the 2022 AMS Steele Prize for Mathematical Exposition. Johan’s Stacks Project is very much deserving of such recognition. It’s both huge in scale and … Continue reading

Posted in Uncategorized | 16 Comments