Quote Originally Posted by GoktimusPrime View Post
Theoretically subatomic particles like tachyons might be able to move faster than the speed of light. That's the theory behind faster than light propulsion systems, like warp drives.
Depending upon which theory (or theories) you subscribe to will determine whether you think tachyons are likely to be too unstable to exist.
And even if they did, they could probably only be used for the FTL transmission of information, which would lead to violations of the causality principle.
Google the "tachyon telephone paradox."

Nothing moves faster than the speed of light.