She proposes to develop theories in more promising areas, ones that have explicit conflicts between different theories (quantum gravity, quantum measurement) or

She proposes to develop theories in more promising areas, ones that have explicit conflicts between different theories (quantum gravity, quantum measurement) or conflicts between theories and observation (dark matter). The biggest problem with something like Supersymmetry is that, contrary to what the previous poster was saying, it is not a falsifiable theory. It has free parameters that can be used to predict that supersymmetric partners to the known particles would have any mass that hasn't been ruled out yet, more or less (maybe they can't be planet sized, but they can certainly have masses that would require accelerators the size of a solar system to rule out).