Not in specifics, but I am familiar with the mention of it all over the place on this forum. I'm assuming its an exploration into the plausibility of construction methods that are associated with assumptions of the tech limitations of the mainstream idea's of who built the pyramids. So as I've mentioned, it just interests me from an enjoyment of the challenge of solving a problem with what I suspect are overly limited assumptions about they're tech advantages. Whether I agree with those limitations or not, its still a fun design challenge.
Do you have a link to an early full explanation with sketchup images?
I would like to see the link of the causeways and river water flow stuff. I'm not completely closed to the idea's. I have loose idea's about water flow and G1, but I haven't really looked closely and have little confidence about those idea's. If it makes solid sense and justifies the causeways, I could be open to it. Even if they had higher tech, efficiency is efficiency when it comes to construction so I wouldn't disregard a cost and man power savings in comparison to alternatives that 'might' incorporate tech advantage.