The UnchartedX YouTube channel [1] has excellent in-depth analysis of possible tools and construction methods used for ancient megalithic structures, including

The UnchartedX YouTube channel [1] has excellent in-depth analysis of possible tools and construction methods used for ancient megalithic structures, including the Great Pyramid. He hasn't released a video yet of the new discovery, but he's talked about the possibility of this chamber before it was officially confirmed. I particularly like his video [2] on the scoop marks around a partially quarried obelisk, and how the evidence might point to the use of yet to be discovered machinery. Not crazy stuff like alien tech or electrical power tools, but advanced engineering. Perhaps some sort of circular saw or device on a crane. [1] https://www.youtube.com/@UnchartedX https://www.youtube.com/@UnchartedX [2] https://www.youtube.com/watch?v=8tnrkahCLHw https://www.youtube.com/watch?v=8tnrkahCLHw