How Stephen Wolfram Figured Out Interstellar Travel in One Night

mirandakatz writes: "Arrival" hits theaters tomorrow, and it's heavy on the science. So how might an interstellar spacecraft actually work? Just ask Stephen Wolfram: he was deputized to figure it out. At Backchannel, he writes: "For the movie, I wanted to have a particular theory for interstellar travel. And who knows, maybe one day in the distant future it’ll turn out to be correct. But as of now, we certainly don’t know. In fact, for all we know, there’s just some simple “hack” in existing physics that’ll immediately make interstellar travel possible." Click through for the full (and lengthy) read.