Thursday, January 16, 2020

Theoretical Physics has lost its way

Physicist Sabine Hossenfelder writes:
In the foundations of physics, we have not seen progress since the mid 1970s when the standard model of particle physics was completed. Ever since then, the theories we use to describe observations have remained unchanged. Sure, some aspects of these theories have only been experimentally confirmed later. The last to-be-confirmed particle was the Higgs-boson, predicted in the 1960s, measured in 2012. But all shortcomings of these theories – the lacking quantization of gravity, dark matter, the quantum measurement problem, and more – have been known for more than 80 years. And they are as unsolved today as they were then. ...

Instead of examining the way that they propose hypotheses and revising their methods, theoretical physicists have developed a habit of putting forward entirely baseless speculations. Over and over again I have heard them justifying their mindless production of mathematical fiction as “healthy speculation” – entirely ignoring that this type of speculation has demonstrably not worked for decades and continues to not work. There is nothing healthy about this. It’s sick science. And, embarrassingly enough, that’s plain to see for everyone who does not work in the field. ...

Why don’t physicists have a hard look at their history and learn from their failure? Because the existing scientific system does not encourage learning. Physicists today can happily make career by writing papers about things no one has ever observed, and never will observe. This continues to go on because there is nothing and no one that can stop it.
She is right. Complaints about the quantum measurement problem or quantum gravity are commonplace, but we are right where we were many decades ago.

Dr. Bee is never going to get tenure anywhere, as physicists do not like to hear this.

The Economist mag has an article about how physicists want to build a new particle collider, but the outlook is bleak for new physics:
As Jon Butterworth, a member of the team that discovered the Higgs boson in 2012, puts it, “My whole career there’s been a very clear road map of what we need to do next and now there isn’t one. We’ve outgrown our road map. Experiment is ahead of the theory. It’s an interesting and difficult time.”
It would be nice is a new accelerator brought us some new physics, but it is a fantasy.

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