I figured three courses earlier.
Also note that if the GG were used to lift stones to the kings chamber level that this new GG might have the same function as a path for a counterweight to lift them even higher. Stones would have been pulled straight up through where the relieving chambers are and after the system were no longer functional the relieving chambers installed.
There still just isn't sufficient data. We need the fundamental data that could have been available long ago. Without knowing the basics it's difficult to generate meaningful hypotheses about details.
These are exciting times but I doubt we've seen anything yet. The basics will be known in the near future.
Edited 1 time(s). Last edit at 05-Nov-17 18:23 by cladking.