Well all this is based on theoretical physics, and just because traveling faster than light is "impossible" now, doesn't mean something won't be found that allows for FTL Travel. I'm a MASSIVE syfy techie, so allow me to clarify exactly what hyperspace is.Hyperdrives are devices which can propel spaceships through hyperspace, by opening a subspace window and traveling within a hyperspace fieldHyperspace is an alternate dimension used by several races for faster than light travel accessible by means of a hyperdrive.Entry into hyperspace is achieved when a vessel opens a subspace window, which allows a vessel to enter subspace and achieve faster-than-light velocities. While at its core all hyperdrive technology followed the same basics.Also, the original X-301 hyperdrive was marked at the same speed given with the calculations below.

Judge seems to play him slightly differently in later seasons. I cant decide which one is better...