"May fears time, Time fears the pyramids." -- old saying
The corbels at the top of the grand gallery have been found to ba hanging on by a fraction of an inch on one end, suggesting the structure was exposed to major stress such as an earthquake of unusual strength. OTOH, it may have happened during the event that cracked the granite blocks used to roof the King's Chamber and the relieving chambers above it.
Mostly it's a crazy local control obsession. The backlash from Hawass and Lehner against the idea of the internal ramp, and even of the muon study, was breathtaking. Since his partial rehabilitation, Hawass has been trying to strip the debris layers away to reach bedrock in the Valley of the Kings -- something that btw has never been done in modern times -- in his desperate attempt to make a big score and find an unplundered pharaonic tomb.
The top step of what must be a tomb entrance was spotted about 120 years ago, and has never subsequently been excavated, mentioned, or catalogued, but I'm not sure most Egyptologists know how to read modern languages.
Hawass is partially rehabilitated? from what? i have not followed his career closely (except for what imho was some earlier tendency towards flashiness).
“The corbels at the top of the grand gallery have been found to ba hanging on by a fraction of an inch on one end, suggesting the structure was exposed to major stress such as an earthquake of unusual strength. OTOH, it may have happened during the event that cracked the granite blocks used to roof the King’s Chamber and the relieving chambers above it.”
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OTOH, it may have happened during the event postulated by C. Dunn - an explosion when some of the ingredients used in generating some sort of power didn’t mix correctly or some such. That idea accounts for the scorch marks in the Kings Chamber and the shifted granite blocks.