Slate has an
article written by Amanda Schaffer on the popularity of Brian Greene and the Elegant Universe and The Fabric of the Cosmos. The article is, in a word, idiotic. The claim is that people like Greene's arguments about the "elegance" of the universe but that the scientific community "disagrees" somehow with it all. The evidence of this cited in the article is based on the comments of Sheldon Glashow (part of the Nobel prize winning Weinberg, Glashow, Salam team that unified the Weak Nuclear Force with Quantum Electro-Dynamics) and Freeman Dyson who wrote a
review of "The Fabric of the Cosmos".
In the NOVA special, Nobel laureate Sheldon Glashow drove home the obvious but downplayed fact that string theory has not been—and may never be—experimentally verified, and that it may be more philosophy than physics.
This is all true and is in some ways unsatisfying but theory has been running ahead of experimental particle physics for some time. If theory cannot really be reconciled with experiment, then the theory won't fly. Greene if he is guily of anything, has carried on a long tradition of popularized science books with presenting the latest theories as neat and complete solutions. And to be fair, Glashow's comments were in the Nova Special and the reason they were was because they were also in the book! Can no one write a book on string theory till it's proven by experiment?
More recently, in the New York Review of Books, Freeman Dyson, an octogenarian and self-proclaimed "old conservative, out of touch with the new ideas," suggested that string theory may simply be one of history's "fashionable" ideas, the kind that flourish briefly, then forever fade away. Glashow and Dyson raise important points. But in the eyes of a captivated public, such reservations appear to be little more than theoretical technicalities.
I watched the Nova special and read the books and that was simply not the impression I got. If alternative viewpoints were not presented then one could make an argument about it. In this case though, you can't. And what "important point" does Dyson raise? That the theory
might turn out to be true? Well then string theory will have alot of company with the other physics theories which have proven to be untrue. Einstein argued vehemently that Quantum Physics was an experimental limitation (regardless of experimental evidence) but history has not be kind to this viewpoint.
Although many features of the physical world do conform to simple equations, there is no guarantee that the unknown will be "elegant" as well. That is to say, research may be prejudiced by aesthetic considerations, and as a result, we may miss out on truths that turn out to be messy and inelegant. Some, including Glashow, worry that many talented young physicists are drawn to the hip realm of string theory and pay virtually no attention to experimental work: "What we do is not of any direct interest to them," Glashow told NOVA.
Glashow's quote applies to the first critism - that String Theory is not backed up by experimental evidence. Considering that Glashow was one of the architects of ElectroWeak symmetry, it's a little dubious to (incorrectly) imply that he does not believe that symmetry has been one of the most important revolutions in physics.
(Dyson goes so far as to say that quantum mechanics and relativity need not be reconciled at all, though he is clearly in the minority here; most physicists would agree that some theory capable of bridging general relativity and quantum mechanics would eventually be needed for a full understanding of black holes, for instance, or of the Big Bang.)
I think it is fair to say that Dyson is in a minority that is perilously close to 1. I challenge anyone to name a real physicst (i.e. one who write papers in journals and not just popular books) who holds this point of view. The recognition of symetry in the universe is, at this point,
not controversial.
On one point, the article is clearly on point. The analogies used make reading parts of the book painful (there is a stretch in the Fabric of the Cosmos where all of the analogies use Simpson's characters - I'm a Simpsons' fan but it was just annoying). I frequently found myself skimming past huge swaths of the book (both for this and the General Relativity boilerplate).