Why Fiber Optics = Unlimited Bandwidth

Fiber vs Copper. They usually do about the same speed. Why use one over another? What is each good at and when should i use either? This video goes over how the technical differences, how to terminate or put ends on the cables and how to test them. It details the major things that sets fiber optics apart from all other mediums. It also shows some of the caveats of having copper that people dont plan on like electromagnetic interference and a key reason you would want to use copper for some things.