Comment by atoav

Thw piano string produces a higer torque because it is shorter does not answer you why it is shorter or how waves travel exactly within it, but it sure as hell would be required knowledge to start researching beyond that first observation.

> The weak force is short range because it's field is stiffer.

May seem like a simple redirection that could go on forever, but we learned that fields can be stiffer, which probably wasn't all that clear. Now we can observe all other forces and look how their fields vary in terms of stiffness — a parameter we might not have thought about before. And by looking in those other places we might find a clue on how to shape an experiment that allows us to vary the stiffness. That could already have useful applications, but also lead to answering the question why some forces have stiffer fields than others.