You and I can estimate where objects in space are going to be at a given date. We can do it with pencil and paper and this math! Alternatively, we could spend 25 US dollars on a physics simulator with beautiful music, and have somebody do it for us with visuals and facts and numbers.

I'm not sure any of this should be treated as canon, because I was saying Adda's name like a ridiculous midwestern American until my agent pronounced it a way I like better.