Geology on the Joe Rogan Experience
6 fact-checked claims across 6 episodes · Oct 2023 to May 2025 · updated Jul 20, 2026
Each is a receipt: the exact quote, its timestamp, what published evidence says, and who benefits.
Most claims
- Graham Hancock (5)
- Zahi Hawass (1)
Related topics
Logged claims
“What caused it was exposure to a very long period of heavy, heavy, heavy rainfall.”
The guest claims the Great Sphinx's erosion was caused by prolonged heavy rainfall during the Younger Dryas period roughly 12,000 years ago, implying the Sphinx is far older than the accepted ~2500 BC date.
“result of heavy rainfall, exposure to heavy rainfall for thousands of years. And you have to go back to the Younger Dryas to get that kind of heavy rainfall in…”
Geologist Robert Schoch attributed the weathering of the Sphinx to thousands of years of heavy rainfall, implying it is more than 12,000 years old.
“What Schock is saying is that the Sphinx and the trench out of which the Sphinx is cut bears the unmistakable evidence of precipitation-induced weathering, wea…”
Hancock claims geologist Robert Schoch's water-erosion analysis shows the Sphinx enclosure was carved by millennia of heavy rainfall, implying the Sphinx is far older than the mainstream ~2500 BC date.
“27 million square kilometers of the best real estate on earth that were above water during the Ice Age are underwater now. Yes, there's been some marine archae…”
Hancock claims 27 million square kilometers of formerly-exposed continental shelf are now underwater and largely unexamined by archaeology, leaving open the possibility of a lost advanced civilization there.
“He came to the Sphinx and he worked with us for a season. And he came and we published many articles that the erosion that you see outside and inside the Sphin…”
Hawass claims a geologist studied the Sphinx and published articles concluding the erosion is from wind rather than water, contradicting Robert Schoch's water-erosion theory.
“The evidence for the Younger Dryas impact is found in what are called impact proxies and that's iridium, nanodiamonds, platinum, melt glass like trinitite, fou…”
Hancock claims Younger Dryas impact proxies such as iridium, nanodiamonds, platinum and melt glass are found across more than 50 million square kilometers of the Earth's surface.