Craig Berry wrote (of stutterwarp):
 > It conserves linear momentum, and also energy if you make each
 > microjump pay the potential-difference cost.

The gravitational potential of the nearest most massive body?
What happens in interstellar space?

Is the effective velocity limited to escape velocity e.g. from the
surface of our sun moving in our solar system?

 > It's still physically impossible (e.g., it violates conservation of
 > angular momentum, allows signals to exceed c, etc.)

FTL information signalling is only problematic if it allows useful
causality violations. Misjumps in Traveller are the cosmic censorship
hypothesis writ large ;-)

Rob O'Connor