This is a very important thing to do, especially when it frees a whole branch of science up to explore fresh alternatives:
We don’t know what we are talking about [...] Many of us believed that string theory was a very dramatic break with our previous notions of quantum theory, but now we learn that string theory, well, is not that much of a break. [... The 1911 Solvay conference, facing radioactivity for the first time] were missing something absolutely fundamental; we are missing perhaps something as profound as they were back then.
Not just some random from the backwoods, either.