We were wrong about relativity. Oops.
So goes The Old Equations, by Jake Kerr. It's good to see there are still room for these stories--take a very simple physics twist and make a story out of it. So what if we never figured out relativity was real until we tried a FTL flight?
Not too realistic, really. Once measurements get sensitive, they don't make sense without relativity. So even if Einstein dies in obscurity, someone else would promulgate the theory in a few years. But this was still fun. It illustrates the more basic point that unprecedented exploration carries major risks. Beyond that, it's done. Three stars.