How do space, time, and matter emerge from an underlying “One”? We know that decoherence plays a crucial role in this process. When an observer—be it ourselves, our pets, a measurement apparatus, or a faraway alien—is observing something, he, she, or it gets entangled with the observed object. As we, as macroscopic beings, are in constant interaction with the rest of the universe, the information about quantum superpositions of the observed object leaks into our environment in next to no time. The result is a quasi-classical object with clearly defined specifications regarding the concrete
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