Think of it this way : "I have solved all of math, physics, and everything else ! Look ! My theory is simply the assembly programming language. Any problem can

Think of it this way : "I have solved all of math, physics, and everything else ! Look ! My theory is simply the assembly programming language. Any problem can be expressed in it and anything that we can predict we can predict using some assembly language". You wouldn't consider this to actually predict anything, right ? Despite the statement being perfectly true. Change any prediction into the assembly program printing it out. Done/done. So the critique of string theory is that it is such a form of assembly language. It is a general principle, that can express nearly any algorithm. So generally one considers that any theory, for it to be a theory, has to predict things unrelated to why it was originally designed, with no changes (or at the very least, very minimal changes). Quantum theory, for instance, was designed to solve a particular problem relating to electrons, but turned out to solve the ultraviolet catastrophe (and dozens of other problems).