Is There a Difference Between Time and Causation?

Co-author Michael Keller is a big philosopher. He won the Templeton Prize in 2008, I believe. So he saw something interesting in this previous research he'd been doing on causality and time order. And you put it all together. That was the idea of the paper that we get together. We're trying to somehow generalize it because relativity is also, it's not just a theory, but it's really one of the theories of physics on which most of modern physics is founded.