That Night, in an Edinburgh Newspaper Office, the Clock Struck 2:17 AM
The oil lamp flickered. Charles Mackay — a 32-year-old journalist, red-eyed, ink-stained fingers — closed his third notebook. Inside were names:
Tulip Mania,
Mississippi Scheme,
South Sea Bubble. Not as mere historical facts. But as
cycles. As patterns. As symptoms that recurred like human breath. He wasn't writing an economic report. He was compiling a
map of the collective soul — the only map showing where common sense vanishes, replaced by the whispers of thousands speaking in unison:
‘This time it’s different.’
‘National Delusions’: When an Entire Nation Believed Flowers Could Be Worth Gold
Imagine Amsterdam in 1637. A single tulip bulb — an ordinary plant growing in sandy soil — was suddenly selling for the equivalent of
ten times a carpenter's annual salary. One ‘Semper Augustus’ bulb was exchanged for: two tons of butter, four oxen, a set of luxury furniture, and a house in the city center. People sold property, borrowed money from banks, even mortgaged their children — just to own something that would wilt in three weeks. Mackay wasn't mocking. He was
observing. In the chapter ‘National Delusions’, he showed: it wasn't individual foolishness that led to the crash — but the
mechanism of mass psychology: the loss of risk perception when everyone around you is doing the same thing. It wasn't history — it was a
repetition protocol.
‘Peculiar Follies’: Haunted Houses, Witches, and Scientists Believed Because They Spoke Loudly
In Tedworth, Wiltshire, in 1661, a house was shaken by mysterious knocking — the ‘Drummer of Tedworth’. Residents flocked to witness it, priests held prayers, and local newspapers reported ‘proof of spirits’. Mackay didn't deny the belief. But he showed
how beliefs spread: not through evidence, but through
social validation. When an influential figure stated, ‘I heard the knocking,’ a thousand other ears suddenly became more sensitive — and a thousand mouths became more convinced. This wasn't magic. It was
social neurology: the human brain is designed to conform, not to judge. And Mackay recorded it — calmly, without sarcasm — like a surgeon noting a wound on the skin.
‘Philosophical Delusions’: When Science Was Forced into Pop Culture
Mackay also explored what we now call
misinformation cascades: the phenomenon where false ideas are not just spread — but
romanticized. For example: the 18th-century ‘magnetisers’ — fake doctors who claimed they could cure illnesses simply by moving their hands over a patient's body. Thousands of patients recovered — not because of magnets, but because of such strong
collective hope that it triggered a real physiological response. Mackay called this the ‘power of imagination driven by popular belief’. Today, we call it the
mass placebo effect. And yes — it still happens. From miracle pills to ‘digital detox’ apps, the mechanism is identical.
An Additional, Never-Printed Chapter: A Hidden Prophecy for the 21st Century
The second edition of the book (1852) added a small note in the margin:
‘The Railway Mania now exhibits symptoms alarmingly similar to those of the South Sea Bubble.’ — and there, Mackay wasn't just describing the British railway bubble, but writing a universal formula:
‘Offering high returns, with forgotten risks, to people who believe they are smarter than previous generations.’ That formula repeated on Wall Street in 1929. In Tokyo in 1989. In Silicon Valley in 2000. And in the 2007 subprime mortgage crisis — where credit analysts assessed risk based on past data, while ignoring one fact:
history doesn't repeat identically — but psychology repeats precisely.
Why Is This Book Still Read by CEOs, Psychologists, and Risk Managers Today?
Not because it's old. But because it
doesn't age. Mackay didn't write about ‘mistakes of the past’. He wrote about
human cognitive structures — which haven't changed from the Bronze Age to the AI era. Every time you see stocks rise 300% in a month, or a TikTok trend that has teenagers drinking vinegar for a ‘detox’, or an online community believing conspiracy theories without sources — you are witnessing a
new chapter from the same book. A book that was never truly finished. A book that doesn't need a new edition — only
re-reading.
And that is the greatest marvel of Extraordinary Popular Delusions: it is not a history book. It is a mirror. A mirror that never lies — it simply shows our faces, repeatedly, in different hats, different eras, different names — but with the same expression: confident, joyful… and a little blind.
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Reference: Extraordinary Popular Delusions and the Madness of Crowds — Wikipedia
This Book Predicted the 2008 Economic Crisis — Though Written 167 Years Earlier. In 1841, Scottish journalist Charles Mackay published a book that seemed like a collection of strange tales — about alchemy, haunted houses, and railway scams. But beneath its detective-novel-like narrative lay an accurate prediction of how humans *always* fall into the same abyss: mass hysteria. And the proof? Not myth — but repeating historical data, from Tulip Mania to Lehman Brothers.. That Night, in an Edinburgh Newspaper Office, the Clock Struck 2:17 AM
The oil lamp flickered. Charles Mackay — a 32-year-old journalist, red-eyed, ink-stained fingers — closed his third notebook. Inside were names: Tulip Mania , Mississippi Scheme , South Sea Bubble . Not as mere historical facts. But as cycles . As patterns. As symptoms that recurred like human breath. He wasn't writing an economic report. He was compiling a map of the collective soul — the only map showing where common sense vanishes, replaced by the whispers of thousands speaking in unison: ‘This time it’s different.’
‘National Delusions’: When an Entire Nation Believed Flowers Could Be Worth Gold
Imagine Amsterdam in 1637. A single tulip bulb — an ordinary plant growing in sandy soil — was suddenly selling for the equivalent of ten times a carpenter's annual salary . One ‘Semper Augustus’ bulb was exchanged for: two tons of butter, four oxen, a set of luxury furniture, and a house in the city center. People sold property, borrowed money from banks, even mortgaged their children — just to own something that would wilt in three weeks. Mackay wasn't mocking. He was observing . In the chapter ‘National Delusions’, he showed: it wasn't individual foolishness that led to the crash — but the mechanism of mass psychology : the loss of risk perception when everyone around you is doing the same thing. It wasn't history — it was a repetition protocol .
‘Peculiar Follies’: Haunted Houses, Witches, and Scientists Believed Because They Spoke Loudly
In Tedworth, Wiltshire, in 1661, a house was shaken by mysterious knocking — the ‘Drummer of Tedworth’. Residents flocked to witness it, priests held prayers, and local newspapers reported ‘proof of spirits’. Mackay didn't deny the belief. But he showed how beliefs spread : not through evidence, but through social validation . When an influential figure stated, ‘I heard the knocking,’ a thousand other ears suddenly became more sensitive — and a thousand mouths became more convinced. This wasn't magic. It was social neurology : the human brain is designed to conform, not to judge. And Mackay recorded it — calmly, without sarcasm — like a surgeon noting a wound on the skin.
‘Philosophical Delusions’: When Science Was Forced into Pop Culture
Mackay also explored what we now call misinformation cascades : the phenomenon where false ideas are not just spread — but romanticized . For example: the 18th-century ‘magnetisers’ — fake doctors who claimed they could cure illnesses simply by moving their hands over a patient's body. Thousands of patients recovered — not because of magnets, but because of such strong collective hope that it triggered a real physiological response. Mackay called this the ‘power of imagination driven by popular belief’. Today, we call it the mass placebo effect . And yes — it still happens. From miracle pills to ‘digital detox’ apps, the mechanism is identical.
An Additional, Never-Printed Chapter: A Hidden Prophecy for the 21st Century
The second edition of the book 1852 added a small note in the margin: ‘The Railway Mania now exhibits symptoms alarmingly similar to those of the South Sea Bubble.’ — and there, Mackay wasn't just describing the British railway bubble, but writing a universal formula: ‘Offering high returns, with forgotten risks, to people who believe they are smarter than previous generations.’ That formula repeated on Wall Street in 1929. In Tokyo in 1989. In Silicon Valley in 2000. And in the 2007 subprime mortgage crisis — where credit analysts assessed risk based on past data, while ignoring one fact: history doesn't repeat identically — but psychology repeats precisely.
Why Is This Book Still Read by CEOs, Psychologists, and Risk Managers Today?
Not because it's old. But because it doesn't age . Mackay didn't write about ‘mistakes of the past’. He wrote about human cognitive structures — which haven't changed from the Bronze Age to the AI era. Every time you see stocks rise 300% in a month, or a TikTok trend that has teenagers drinking vinegar for a ‘detox’, or an online community believing conspiracy theories without sources — you are witnessing a new chapter from the same book. A book that was never truly finished. A book that doesn't need a new edition — only re-reading .
And that is the greatest marvel of Extraordinary Popular Delusions : it is not a history book. It is a mirror . A mirror that never lies — it simply shows our faces, repeatedly, in different hats, different eras, different names — but with the same expression: confident, joyful… and a little blind.
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Reference: Extraordinary Popular Delusions and the Madness of Crowds — Wikipedia https://en.wikipedia.org/wiki/Extraordinary Popular Delusions and the Madness of Crowds
