I agree that the lack of time delay in many ground to Apollo transmissions can be explained by indirectly responsive transmissions and by anticipation responses. But we can all now directly observe speed of light communication delays on a daily basis in the communications between the cable news personel and their counterparts in Afghanistan. The round trip travel time for those messages traveling apx 200,000 miles is one second (25,000 up to geosync, 25,000 to the first relay satelite, 25,000 to the second above Afghanistan and 25,000 down then the reply coming back the same route.)

In the normal conversations of the news men the delay is very noticable and even somewhat annoying. In the transmissions of Apollo the structure of the transmissions vis a vis the speed of light delay, which although twice as much as for the transmissions from Afghanistan is very much less noticable.

SAMU