Like the explorers aboard the ABC Jungle Fruit are cruisers searching for resources beyond Earth in a class on Einstein's special relativity over at brilliant.org.
The speed of light is a cornerstone in Einstein's theory of special relativity, which is what gives us the concept of causality: causes precede effects.
But, when Einstein constructed the theory of relativity, did he know that it would lead to the development of GPS, nuclear energy, or the original television?