On the up side, it lowers the bar for faster-than-light travel, right?
Thanks to Einstein, everyone knows that the speed of light in a vacuum is a constant (299,792,458 meters per second), and we use that speed to calculate distances in the vastness of space. But, light has had a bit of a lateness problem at times, which doesn't make a lot of sense if its speed is constant. Well, surprise! Light might actually be slower than we thought.