” irony in Feynmans example. After all Feynman picked arbitrary ratios. He might have chosen another pair from the elementary forces that physics now acknowledges and another ratio would have followed. He might have swapped the diameter of a proton for that of an electron and again another ratio would have followed. Some other explanations (see above) are actually more fascinating, but most physicists would agree on this: in simplicity lays beauty and truth”