The Diary Of A CEO
Bestselling author Graham Hancock presents evidence for a lost prehistoric civilization, discussing ancient astronomy, the Great Pyramid, and the impact of a global cataclysm.
Graham Hancock argues that a global cataclysm erased 12,800 years of human history, leaving behind evidence such as the Great Pyramid and ancient maps that suggest a sophisticated prehistoric civilization existed before mainstream historical timelines.
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Key takeaways
Graham Hancock presents evidence for a lost prehistoric civilization, including ancient maps showing unknown continents and knowledge in the Great Pyramid that predates mainstream timelines by 2,500 years.
13Hancock explains how the Amazon rainforest is a man-made landscape that hides buried evidence of past human activity and civilization.
3Hancock shares insights from 80 ayahuasca ceremonies, discussing what shamanism gets right and the common psychedelic visions experienced by people.
35Hancock discusses why his work is controversial and how mainstream science pushes back against the idea of a lost civilization and ancient knowledge.
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“What evidence does Graham Hancock present for a lost prehistoric civilization?”
“How does Graham Hancock explain the significance of the Great Pyramid?”
“What insights did Graham Hancock gain from his ayahuasca ceremonies?”
Background reading
About the Guest
Graham Hancock is a best-selling writer and journalist who has spent three decades investigating evidence for a lost prehistoric civilization. He is the author of international bestsellers including 'Fingerprints of the Gods' and the presenter of the Netflix documentary series 'Ancient Apocalypse'.
2Questions
Graham Hancock reveals the catastrophe that erased 12,800 years of our past.
1The Great Pyramid contains knowledge humans shouldn't have had for another 2,500 years.
3Hancock shares insights from his experiences with ayahuasca and what shamanism gets right.
3Hancock discusses why mainstream science pushes back against the idea of a lost civilization.
5Experts
Best-selling writer and journalist
2Sources and disclosure
This guide is based on the episode 'Graham Hancock: The Case for a Lost Civilization' from The Diary Of A CEO with Steven Bartlett, published on 2026-06-11.
What is ancient astronomy hiding about our true history? Graham Hancock reveals the catastrophe that erased 12,800 years of our past, what the Great Pyramid is actually trying to tell us, and what he refuses to leave unsaid with heart surgery just weeks away.
Graham Hancock is a best selling writer and journalist who has spent 3 decades investigating evidence for a lost prehistoric civilisation. He is the author of international bestsellers including 'Fingerprints of the Gods', and is the presenter of the Netflix documentary series 'Ancient Apocalypse'.
He explains: ◼ Why the Great Pyramid contains knowledge humans shouldn't have had for another 2,500 years ◼ The ancient maps that show a continent nobody should have known existed yet ◼ How the Amazon rainforest is actually a man-made landscape hiding what's buried beneath ◼ What 80 ayahuasca ceremonies taught him
Chapters
• 00:00:00 Intro • 00:02:19 Do Humans Have A Hidden Past? • 00:06:18 Did A Global Cataclysm Reset Humanity? • 00:11:09 Why Have This Conversation Now? • 00:12:17 Why Is Your Work So Controversial? • 00:14:35 How Old Is Humanity Really? • 00:18:40 The Evidence Behind The Lost Comet Theory • 00:19:56 What Truly Defines A Civilization? • 00:22:59 Did Humans Survive The Ice Age? • 00:24:18 What Were Early Humans Really Like? • 00:28:04 The Missing Chapter In Human History • 00:29:38 Could We Become The Next Lost Civilization? • 00:34:53 How Do We Know These Stories Are True? • 00:37:38 The Unsolved Mystery Of The Great Pyramid • 00:41:42 The Real Meaning Of The Age Of Aquarius • 00:46:47 Did The Ancients Know The Size Of Earth? • 00:49:26 Were Ancient Secrets Passed Down Through Time? • 00:51:42 Where Did Humanity's Lost Knowledge Go? • 00:53:47 Do The Pyramids Point To A Lost Civilization? • 00:55:03 Is Something Hidden Beneath The Great Pyramid? • 00:56:59 Why Mainstream Science Pushes Back • 00:58:21 Alone Inside The Great Pyramid • 01:00:04 Ads • 01:02:05 What A Lost Civilization Means Today • 01:03:02 Should We Rethink Astrology And Telepathy? • 01:05:08 New Discoveries Beneath The Amazon • 01:08:31 What Shamanism Gets Right • 01:09:18 A Journey With Ayahuasca • 01:12:26 Strange Experiences From Childhood • 01:15:19 Did You Have Nightmares? • 01:16:35 Why Being An Outsider Matters • 01:17:51 Don't Let Life Pass You By • 01:19:51 Are Religion And Spirituality The Same? • 01:22:00 Why Do People Experience The Same Psychedelic Visions? • 01:25:01 Why Humanity Must Look Inward First • 01:28:47 Ads • 01:29:48 What Consciousness Really Is • 01:32:36 How Illness Changed My Perspective • 01:33:30 Why Love Matters Most • 01:39:36 What Ancient Civilizations Teach Us Today • 01:44:14 The Power Of Independent Thinking • 01:46:33 What Will Matter On Your Last Day? • 01:47:13 Living Without Judging Others • 01:49:36 Will We One Day Worship AI?
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