Let's be upfront about it: Phil Hornshaw and Nick Hurwitch aren't scientists.
But the friends definitely have a love of the science of time travel, which they poured into their new book, "So You Created a Wormhole: The Time Traveler's Guide to Time Travel."
Hornshaw and Hurwitch have seen way too many bad time travel movies and they have the same questions as other sci-fi fanboys and fangirls: "It’s hard to walk out of a time travel movie and not go, 'How do these things sync up?'" Hornshaw told CNN Geek Out.
"Phil and I are longtime geeks," Hurwitch said. "The atrocities of time travel plot devices began to stack up. We simultaneously came up with an original time travel show [still in 'drawing board phase'] and a guide book on how to do it properly."
Hornshaw said that their interest in theoretical physics and astronomy came from a lifelong interest in science fiction; the pair have been friends since third grade in Novi, Michigan.
"We read Michael Crichton’s 'Timeline' back in high school, and both of us were into the concepts from that book," he said. "What we wanted to do with the guide was to make it as simple as we could because it can get so expansive. We pay a lot of attention, but we don’t study up on anything more than what we’re interested in."
"In the book we’re more concerned with how science affects plot, as opposed to how it affects science," Hurwitch said.
Read more about their research and the best and worst moment in pop culture time travel after the jump: