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As you know, a theory in physics is not useful unless it is able to predict underlined effects which we would otherwise expect.

Richard P. Feynman (2008). “Perfectly Reasonable Deviations from the Beaten Track: The Letters of Richard P. Feynman”, p.116, Hachette UK
As you know, a theory in physics is not useful unless it is able to predict underlined effects which we would otherwise expect.