Well, the speed of light is an interesting concept. We use it on a daily basis in fission-fuled powerplants, E=MC^2, and it's proven itself over and over again. What light actually is raises alot of other questions.
There's an interesting paradox that arises from the idea of traveling faster than light. If we were somehow able to do that we would infact be traveling back in time, Einstein pondered that too for a while. However, if we were to invent a way to travel back in time we could just head back a few years and provide the civilization at that point in time with the "blueprints" for our timemachine. So if I get a visit by myself (a future myself) tomorrow and I hand myself the blueprints for a timemachine and I decide to build it and head back and give myself the blueprints again, where do the blueprints actually originate from?
This metaphysical paradox would seem to prove that nothing can travel faster than light and that no matter how hard we try we'll never be able to travel back in time.
There's an interesting paradox that arises from the idea of traveling faster than light. If we were somehow able to do that we would infact be traveling back in time, Einstein pondered that too for a while. However, if we were to invent a way to travel back in time we could just head back a few years and provide the civilization at that point in time with the "blueprints" for our timemachine. So if I get a visit by myself (a future myself) tomorrow and I hand myself the blueprints for a timemachine and I decide to build it and head back and give myself the blueprints again, where do the blueprints actually originate from?
This metaphysical paradox would seem to prove that nothing can travel faster than light and that no matter how hard we try we'll never be able to travel back in time.
