Wednesday, July 28, 2021

Brian Greene Still Clings to String Theory

Physicist Brian Greene used to be the public face of string theory, and on a recent video Q&A, he was asked:
Is it true that physicists are losing their hope in string theory?
The answer is obviously yes, but he refuses to admit it.

Greene's answer is amusingly weak. He is unable to point to any theoretical or experiment progress in string theory. He just babbles.

He starts by getting a drink of water, emphatically saying the answer is no, and claiming that the string theory critics need psychotherapy!

He goes on to defend the multiverse, even tho that was not really the question. He says string theory does not require a multiverse, but he argues for the multiverse, as that were essential to his belief in string theory.

He implies that only a narrow-minded person would only believe in one universe. He admits that it is desirable to have physical evidence for physical theories, but says that evidence for part of a theory (ie, one universe) can be taken to enhance a belief in other parts (ie, other universes.

He ends by saying that the state of the field is one of excitment.

Watch the above video from 42:00 to 46:00 if you think that I have distorted him.

If I knew nothing about string theory, I would say that this is a con man promoting goofy ideas that no one could believe. If I watched the rest of the video, I would see that he undertands a lot of physics, and is good at explaining textbook physics, and I would be very confused.

Dr. Bee's latest video says that string theorists have given up on their original goals, leaving an overhyped research program. The multiverse is so silly it is not even science. She challenges a lot of modern theoretical physics as too speculative to be worthwhile.


  1. No observable evidence or experiment for measurable indications of string theory
    ...skeptics need psychotherapy!


    No observable evidence or experiment (even remotely possible in principal) for existence of multiverse
    ... skeptics are small minded.

    As an apparent small minded skeptic in need of psychotherapy I thinketh Brian Greene doth protest too much and provideth too little actual data.

    “It is difficult to get a man to understand something, when his salary depends on his not understanding it.”

    Upton Sinclair

  2. And you still cling to Copenhagen quantum mechanics when classical random field theories exist to complete QM by following Einstein and eliminating particles. ‪Andrei Khrennikov debunked your Bohrs and anti-realists a long time ago. Physics is full of cranks who don't understand the subtleties of math.