PHYSICS
Why is string theory so important?
String theory remains purely hypothetical
String theory is elegant because it takes a wealth of phenomena, particle properties and their interactions and it reduces them to one essential idea: the ways that little filaments can vibrate. For example, the string in a cello vibrates in one way and produces one musical note, and it vibrates in a different way and produces a different musical note. In string theory, when these little filaments vibrate in different patterns they produce different particle properties. So the wealth of everything that emerges from the particles comes from the vibration of the strings. Everything is like a cosmic symphony, so it’s a very beautiful and elegant idea.