> So, if your argument for not studying string theory is that it doesn't make testable predictions, you are actually saying that you should not study quantum gr

> So, if your argument for not studying string theory is that it doesn't make testable predictions, you are actually saying that you should not study quantum gravity at all. A different version of the argument: After X amount of work and effort, string theory has not managed to make falsifiable predictions. Here X is much larger (by a factor of 100 maybe?) than the work and effort spend so far to study quantum gravity. Who knows, if quantum gravity might proceed to give falsifiable predictions after some more work.