Lenny Susskind
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It really depends. Being totally honest:
âString Theoryâ has done a *tremendous* amount of good while âString Maximalismâ has done even more harm.
If the String Theorists who led the movement were to undo some of the damage by admitting what happened, itâd be a major positive.
Here is where I respectfully disagree with my colleague @skdh. You canât âget rid of string theoryâ. String-like objects are natural and have an unbelievably rich and beautiful interlocking mathematics. The beguiling beauty isnât the problem in my opinion. Beauty is the excuse.
The problem is that string theory on its own has taken the last 40years to PROVE it doesnât work as a stand alone path by gobbling up mind share, students, resources and (to be fair) most of the most brilliant brains. So much that no one dares say the full extent of the disaster.
During that time String Theory diverted the entire field into a magical never-land of âtoy physicsâ. Models that arenât in any way real. You now have âparticle physicistsâ at the end of their careers who have never worked with anything like a particle and canât remember them.
So, hereâs my analysis. In a world where David Gross, Ed Witten, Lenny Susskind, Cumrun Vafa, Michio Kaku had a public Come To Jesus moment where they admitted the disaster in front of the community faithful, Iâd be up for having ST as a major theory. But without that Iâm unsure.
The damage to the culture of High Energy Physics is more severe than the damage done by Geoffery Chew in a different era. And here I support @skdh, Peter Woit, Lee Smolin etc. These are brave people who paid with abuse to communicate that physics was diverting into pure fantasy.
So to sum up:
String Theory deserves to be a major branch. But it has already mostly given up on the â80s promises/lies it told us to gobble up all the resources of the community (brains, mind share, $$$). That was a crime which may prove fatal to our being able to do physics.
But it is also so thoroughly investigated and badly behaved relative to scientific norms that it deserved to be shrunk. And that happened to a large extent already. The most important thing to realize is that physics is still about the physical world. Not Calabi Yau. Not AdS/CFT.
And we need our brilliant failed string theorists to admit the disaster within a scientific paradigm.
Science is a culture. Perhaps the most fragile one. It wonât survive this suspension of collegiality, decency and self-critical behavior. We need to go back to real physics. đ
@martinmbauer String theory was a giant percentage of a tiny priesthood. That was the same tiny priesthood that brought us Thermo Nuclear devices. And if you want to pay for me to research the numbers Iâm willing to hire somebody to put together the data after 1984. Itâs not usually contested.
@DontsitDJ @martinmbauer I wasnât aware of it like that. I think he disagrees with me and has a bit of an edge. But maybe I missed a tweet or two. I havenât seen much interaction and he has written some things I liked.
@DontsitDJ @martinmbauer I love a good critique. Itâs hard to find. Most people out here develop a side hustle in interpersonal drama. I try not to.
@martinmbauer I donât know which version of âThe Fieldâ you mean.
Physics in total? Is a large field.
Beyond the standard model theory? Is a small field. Tiny. But hugely consequential. And the percentage and effect wasnât small. Do you really dispute this??? Look at the IAS professors.
@martinmbauer Seiberg/Witten/Dijkgraaf/Maldacena
All string folks.
Maybe get a string theorist to admit this to you. Brian Greene likely wouldnât disagree with me.