Scientific American: ” String theory is incredibly appealing to many scientists because it is “beautiful”—its equations are satisfying and its proposed explanations elegant. But so far it lacks any experimental evidence supporting it—and even worse, any reasonable prospects for gathering such evidence. Yet even the suggestion that string theory may not be able to accommodate the kind of dark energy we see in the cosmos around us does not dissuade some. “String theory is so rich and beautiful and so correct in almost all the things that it’s taught us that it’s hard to believe that the mistake is in string theory and not in us,” Sethi says. But perhaps chasing after beauty is not a good way to find the right theory of the universe. “Mathematics is full of amazing and beautiful things, and most of them do not describe the world,” physicist Sabine Hossenfelder of the Frankfurt Institute for Advanced Studies wrote in her recent book, Lost in Math: How Beauty Leads Physics Astray (Basic Books, 2018). ”
scientificamerican.com/article/string-theory-may-create-far-fewer-universes-than-thought/