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For questions about mathematical problems arising from physics, the natural science studying general properties of matter, radiation and energy.
6
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Explanations for mathematicians, about the falsifiability (or not) of string theory
It's a part of physics to stay with us much like QCD or anything else in physics. The question is only what is the right vacuum or background to describe the world around us. … Physics hasn't yet reached the very final end point - the complete understanding of everything - but that doesn't mean that it's plausible that physics may easily return to the pre-string, pre-quantum, …