Has String Theory Been Discredited?

Many physicists consider string theory our best hope for combining quantum physics and gravity into a unified theory of everything. Yet a contrary opinion is that the concept is practically pseudoscience, because it seems to be nearly impossible to test through experiments.

Is string theory a failure?

String theory has so far failed to live up to its promise as a way to unite gravity and quantum mechanics. At the same time, it has blossomed into one of the most useful sets of tools in science.

Is string theory still accepted?

This new theory, called quantum chromodynamics, or QCD, today remains our theory of the strong nuclear force. And as for string theory, it mostly faded into the background. ... And today, that string theory also remains, still attempting to explain the strong force — and so much more.