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It's very likely a unified theory will win a prize maybe even the Nobel Prize but it isn't going to happen anytime soon. FWIW I'm about as convinced of the truth of string theory as I am of the truth of General Relativity. Sure a better version of M-theory or something else is sure to be discovered but it will be an outgrowth of the current enterprise. The problem is even if we had the correct theory right now it probably would not do us much good at all. It would be a puzzle box we couldn't even open or get answers from it. People underestimated the difficulties involved and the theory was over hyped. Now begins the long "string theory winter". Decades from now, some diehard whose career is foundering will make a significant breakthrough, enough to compel everyone's attention. Until then, there's plenty of interesting physics problems to work on that have been unjustly neglected for too long.

Einstein's theory of GR could end up being "wrong" but it would live on as a very good approximation to a more fundamental theory.

String theory could very well turn out to be completely wrong but it would fail in a very different manner. If ST is wrong, it's no longer useful. If GR is "wrong" people will still use it.

For various reasons which are by no means proof or even evidence I think ST is basically correct but we're simply unable to make proper sense of it.

Anyway, we're here at the string theory winter. Careers are ruined, people disappointed etc. That's just how it goes. Sometimes, things work out and sometimes they just don't. We didn't exactly walk away from all of this with ZERO but we're very far from the ultimate PRIZE or GOAL. In hindsight we'll probably look back on this and realize we were hopelessly unable to succeed given the tools and ideas of the day. Expert systems were simply unable to deliver and people were crushed. Careers were ruined. Hopes dashed. Naysayers vindicated then along comes this crazy guy who just won't give up on neural networks.

I think the future looks much brighter for unified physics now that string theory as we knew it has clearly failed. I don't want to leave these guys out too so let me add that loop quantum gravity has failed too, much more gracefully I might add. I think these guys were on to something and their ideas aren't going to completely disappear.

I've thrown away about 10,000 hours of my life on this stuff. Thanks for spending 3 minutes on my meager insights.




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