But quantum physics is significantly stranger than Newtonian physics, and its math is stranger too. If you want to know where an electron is, you need more than three numbers—you need an infinity of them. Quantum physics uses infinite collections of numbers called wave functions to describe the world. These numbers are assigned to different locations: a number for every point in space. If you had an app on your phone that measured a single electron’s wave function, the screen would just display a single number, the number assigned to the spot where your phone is. Where you’re sitting right
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