What Does Quantum Physics Tell Us About Reality?
Science
In quantum physics, the “sum of all possible realities” refers to the concept of quantum superposition, which states that a quantum particle can exist in multiple states simultaneously until it is observed. The sum of all possible realities is the combined amplitude of each possible state, known as the wavefunction, representing the probabilities of each possible outcome. When the particle is observed, the wave function collapses into a single definite state, determined by the observer’s measurement. This idea is one of the central principles of quantum mechanics and is known as the Copenhagen interpretation.
However “sum of all possible realities” might be a good headline for some. However, it is somewhat misleading. Furthermore, as far as quantum physics becomes concerned. It’s not really a simple sum that we can imagine, but more of a superposition of interacting wave patterns, like the ones you can see on the surface of a lake, or in a diffraction pattern of the optical instruments. Importantly, the probabilities don’t sum naively as in 1/100 of likelihood for each of 100 possible realities.
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Quantum physics actually allows us to consider things in simpler terms of probabilistic composition of virtual realities. However, you need to allow for extra hidden dimensions to do that. That is the domain of the so-called stochastic quantization method, which is a very interesting alternative to Feynman’s path integrals.
Either way, what you see is not what you get — you get a lot more, and to make sense of that, you need to think either with complex phase space, or with extra dimensions. It is remarkable though that physicists, namely Richard Feynman for path integrals and Giorgio Parisi for stochastic quantization, were able to imagine these possibilities by ascribing deeper meaning to computational methods that were derived to produce correct results.
What Does Quantum Physics Tell Us About Reality?



