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backreaction.blogspot.com
| | jkmsmkj.fyi
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| | 4gravitons has proposed a challenge: To explain scientific papers appearing on arXiv on a given day in a given (sub)field to a general audience. The challenge is directed towards fellow science communicators so that definitely excludes me. But one of my old year thoughts (turned to a new year resolution) for this blog was to...
| | profmattstrassler.com
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| | Einstein's gravity is widely seen as the most beautiful theory in all of physics. But dark energy, quantum physics, and string theory all raise questions.
| | 4gravitons.com
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| | Merging quantum mechanics and gravity is a famously hard physics problem. Explaining why merging quantum mechanics and gravity is hard is, in turn, a very hard science communication problem. The more popular descriptions tend to lead to misunderstandings, and I've posted many times over the years to chip away at those misunderstandings. Merging quantum mechanics...
| | scottaaronson.blog
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| So I've written an article about the above questionfor PBS's website---a sort of tl;dr version of my 2005 survey paperNP-Complete Problems and Physical Reality, butupdated with new material about the simulation of quantum field theories and about AdS/CFT. Go over there, read the article (it's free), then come back here to talk about it if...