A pulse travelling faster than the data. Is that like if I had a really bright flashlight, and swept the beam across an arc of sky from Mercury to the moon in a second, say 95 million miles or 500 light-seconds?
The spot of light travels at 500 c or any speed you like, and yet any data from Mercury to the moon takes 500 seconds to arrive.
Mrs VS
Yes, that is one way to look at it. Interference patterns are used to aim radar beams and they can switch instantly from one look angle to another. The pulse propagation is very similar. It looks superficially like a wavefront, but isn't carrying any information.