[frgoff]

The misconception is not being able to travel faster than light.

Actually, the relativity equations say no such thing. What they say is that you can't travel AT the speed of light, unless you are massless.

Once you get past the speed of light, the equations work again, except that a number of them have an imaginary component (sqrt-1).

A superluminary universe has some interesting properties according to relativity theory. Rest mass is at 2sqrt(2)c, doppler shifts are reversed, it takes infinite energy to slow DOWN to the speed of light, etc.

[IronJack]

A superluminary universe has some interesting properties according to relativity theory. Rest mass is at 2sqrt(2)c, doppler shifts are reversed, it takes infinite energy to slow DOWN to the speed of light, etc.

Yeah, that makes sense. It's like approaching a limit from the "other side."

[Drammach]

Once you get past the speed of light, the equations work again, except that a number of them have an imaginary component (sqrt-1).

That sounds much better than what I remembered reading about in the mid-70's..
About all I could remember was that it was theorized there were particles that travelled faster than light and that relativity made it "practically" impossible to slow to that limit..