Einstein thought this was a big deal because he saw no reason to believe in any kind of instantaneous influence. He said, well, if we really want to say that we can't talk about what's going on before we make measurements, then we have to say it's an instantaneous influence. And so why did Einstein think this was abig deal? It doesn't look like something you could use for instantaneous communication.
There are many mysteries surrounding quantum mechanics. To me, the biggest mysteries are why physicists haven’t yet agreed on a complete understanding of the theory, and even more why they mostly seem content not to try. This puzzling attitude has historical roots that go back to the Bohr-Einstein debates. Adam Becker, in his book What Is Real?, looks at this history, and discusses how physicists have shied away from the foundations of quantum mechanics in the subsequent years. We discuss why this has been the case, and talk about some of the stubborn iconoclasts who insisted on thinking about it anyway.
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Adam Becker received his Ph.D. in physics from the University of Michigan. He is currently a science writer and a Visiting Scholar at the Center for Science, Technology, Medicine & Society at UC Berkeley. His book What Is Real? The Unfinished Quest for the Meaning of Quantum Physics comes out in paperback on Sept. 3, 2019.
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