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[Phys-L] Re: Travel distance in a waveguide.

Regarding Joel's suggestion:

| Here's the rub: It is traditional for $c$ to be called
| "TheSpeedOfLight". This causes all sorts of confusion. It
| overstates the connection between $c$ and light. A generic
| light wave is neither necessary nor sufficient for defining
| $c$. IMHO we really need a better way of saying what $c$ is.s

How about "speed of causation"?

It's a mouthful, but I prefer "local speed limit of causation"
for it descriptive clarity.

David Bowman