passive aggressive vs aggressive

[Plug Drugs]

The cool thing about Einstein's relativity is that you can arrive at an understanding of it and deduce its validity with nothing but logic alone.. Relativity was just a thought experiment proposed by Einstein for years before there was ever actually any experimental evidence supporting it.
Einstein and company had to try and make a visit to a solar eclipse at the exact location it was visible in order to back relativity with experimental evidence; and in the early 1900s, that's a lot more difficult than it sounds. There was no air travel and they had to zig zag through international borders of countries at war with each other and travel halfway around the globe to get to the right location and be there at the right time, and cross their fingers that it wasn't cloudy.
They did all that to gather experimental evidence for something that would probably sound pretty quacky if you tried explaining to a layperson why you were traveling halfway around the globe to catch a solar eclipse.