| | I've always thought of Hawking as a hero, because I've always considered him to be a great scientist, and devoted to reason. But maybe if I re-read some of his stuff now that I'm more acquainted with Objectivism, I'd find more to worry about.
I do think that, like David Harriman at ARI says, a lot of modern physics is starting to sound like pseudo-science; for example, a recent edition of Scientific American, on the front cover, stated that "Infinite Earths in parallel universes really exist." I have the impression that theoretical physicists are in a difficult place where their problems are very challenging, and it is hard to come up with experiments to test their theories--and the big worry is that they'll start to forget about the necessity of testing their theories with experiments, or something like that. Maybe Hawking doesn't seem skeptical enough about all these abstract, strange ideas that aren't very well tested yet.
Two things in particular scare me about modern physics--first, physicists have noticed that the laws of physics usually seem to be in some sense "beautiful", or "elegant", or something--and they use this sense of beauty or elegance to guide them when they're trying to discover new laws of physics. Well, I believe that's useful, but I'm afraid that physicists could start to trust this feeling of beauty too much, to the point of disregarding experimental evidence, or not searching hard enough for experimental confirmation of their theories.
There's a story about Einstein--when he got the letter that contained the results of an experimental test of his theory of relativity, supposedly he didn't even open it; and supposedly (I think the story goes) he said something like, "if my theory were wrong, then God would have made a mistake." I think that's a very unscientific thing for someone to say. He should have said, "regardless of how beautiful my equations are, it is still crucial to test them carefully with experiments to see if they are actually true."
The other thing that worries me, is that a lot of physics students are drawn to physics because they are fascinated by how *strange* it is--and I'm afraid that when they grow up, and become researchers, they'll be eager to come up with the *strangest* theories they can possibly imagine; I'm afraid their love of strangeness could pull them away from a disciplined search for the truth.
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