Quantum mechanics can be hard to grasp, even for the physicists who use it every day. As a result, people have argued from the very birth of the field about what's really going on in quantum mechanical systems. To some extent, it doesn't really matter how you interpret things, provided everyone gets the same answers when they solve a physics problem
|The plot of the movie Hot Tub Time Machine relied on the Many Worlds physics view of time travel. A new quantum mechanical approach may let us check to see if we really are surrounded by infinitely many universes.|
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