Tops: A History of Manias

Imagine you had a friend who told you the same story again and again, but each time dressed it up so cleverly that you didn't notice it was the same story. First it's about a magic bean. Then it's about a magic machine. Then it's about a magic new kind of money. The props keep changing, but if you listen closely, the shape of the tale is always identical: something wonderful and new has arrived, everyone is getting rich from it, and - this is the important bit - the boring old rules about what things are worth simply don't matter any more.

That friend is the stock market during a mania, and this chapter is about learning to recognise the shape of the story no matter what costume it's wearing.

Here is the whole idea in one sentence. Across hundreds of years and dozens of countries, the giant booms that end in giant crashes have all been built from the same handful of ingredients: a thrilling new invention that captures everyone's imagination, a comforting belief that this time the ordinary rules of value have been repealed, a river of easy borrowed money, and a long, quiet stretch where nothing has gone wrong for so long that people forget it ever could. When you see those ingredients together, and prices climbing on pure excitement while nobody asks the plain question "but what is it actually worth?" - that is not a green light telling you to jump in. It is a warning light telling you to slow down. A gripping story, not a careful sum, is usually what pushes a boom to its wildest heights - so when you notice a story doing the heavy lifting, treat it as a signal to be more careful, not less.

The strange thing is that manias don't feel like a repeated story while you're inside one. They feel brand new, urgent, and once-in-a-lifetime. That feeling is exactly the trap. So our job here is to step outside the excitement and study the pattern coldly, the way a doctor studies the same fever in a hundred different patients.

You might wonder why we spend a whole chapter looking backwards at old booms and busts. Surely the past is the past? But here is the quiet secret of investing: the machines change, the companies change, the fashions change - and people do not change at all. The same feelings that made a crowd go wild three hundred years ago (greed, fear of being left behind, the warm comfort of everyone agreeing) are the exact feelings buzzing in a group chat today. Because the feelings repeat, the pattern repeats. History doesn't copy itself word for word, but it rhymes.

And knowing the rhyme is a genuine superpower, for one simple reason. During a mania, almost everything around you is screaming "buy, hurry, you're missing it." Your neighbour is bragging. The television is cheering. A boy in your class doubled his pocket money. Every single signal points the same way. In that storm of noise, the only thing that can keep your head steady is a pattern you learned beforehand, in the calm, when you weren't excited. If you wait until you're in the middle of the frenzy to start thinking clearly, it's already too late - the frenzy has your steering wheel.

Think of it like learning about riptides before you go to the beach. On a sunny day the water looks friendly and inviting, and a riptide gives almost no warning. But a child who was taught the pattern - "if the water suddenly pulls you sideways and out, don't fight it, swim across it" - has a calm rule ready when the panic hits. They aren't braver than everyone else. They just packed the knowledge in advance. Studying old manias is packing your riptide knowledge before you ever touch the water. It won't tell you the exact day a boom will end - nobody can know that - but it will let you feel, in your stomach, when the water has started pulling in a way you've read about before.

There's one more reason this matters, and it's the biggest one. A crash doesn't hurt everyone equally. It ruins the people who arrived last and loudest, the ones who put in the most money at the highest prices because the story was most thrilling right before it broke. The whole point of understanding the pattern is not to be clever about the top. It's to make sure that, whoever gets hurt when the music stops, it isn't you.

Let's now lay out the recipe plainly, because once you can name the four ingredients you'll spot them everywhere. A true mania - the dangerous kind, not just a normal good year - needs all four cooking together. One or two on their own is usually fine. It's the full set, bubbling at once, that makes the poison.

Ingredient one: a thrilling new-technology story. There has to be some genuinely exciting invention or idea that seems to change everything - a new machine, a new network, a new kind of money, a new way of doing an old thing. The excitement is often real; the technology may well be genuine and important. That's what makes it so convincing. The story isn't a lie. It's a true story stretched into a reason to pay any price.

Ingredient two: the belief that the old rules of worth no longer apply. This is the heart of it. In normal times, people ask sensible questions: how much does this company earn? Is the price fair compared with those earnings? During a mania, those questions start to feel old-fashioned, even embarrassing. A new idea takes over: "You don't understand - this is different. The usual maths is for the past. This is the future." The moment worth stops being measured and starts being assumed, the door to danger swings open.

Ingredient three: easy money. For a small boom to swell into a giant bubble, there has to be lots of cheap, easy-to-borrow money sloshing around, so people can buy not just with their own savings but with borrowed rupees on top. Borrowed money is petrol on the fire: it lets prices climb far higher than real savings ever could, and it makes the eventual fall far more violent, because borrowed money has to be paid back whether prices went up or down.

Ingredient four: a long calm. The trap is baited slowly. For the recipe to work, there usually has to be a long stretch - years - where markets went up and nothing bad happened. That long calm quietly teaches everyone that being careful is a waste, that risk is a myth, that the bold always win. By the time the mania peaks, a whole crowd of people has never once seen a serious crash, and genuinely cannot imagine one.

Keep this recipe in your head as we go. Everything that follows is just these four ingredients showing up, over and over, in different clothes.

Let's put rupees on the table and watch the first ingredient - the new-technology story - take hold of an ordinary, sensible person. illustrative

Meet Rohan, a schoolteacher who has carefully saved ₹3,00,000 over five years. He is not reckless. But one year, everyone starts talking about a shiny new kind of company - let's say companies that make "smart farming" gadgets, machines that promise to change how the whole country grows food. The idea is genuinely exciting, and some of the technology is genuinely clever. That's important: Rohan is not being fooled by nonsense. He's being fooled by a true thing stretched too far.

At first Rohan just watches. A share in one of these smart-farming companies costs ₹100. Over a few months the story spreads - news channels, videos, his brother-in-law at a wedding - and the price climbs to ₹250. Rohan feels a small pang: I should have bought earlier. A few months later it's ₹500. Now the pang is a real ache. Everybody who bought is up big, and they are not shy about saying so. By the time the price hits ₹900, Rohan can't bear it any longer. He puts in his whole ₹3,00,000, buying about 333 shares at ₹900 each.

Notice what actually convinced him. It wasn't a careful look at how much these companies earned - in fact most of them earned nothing at all, or lost money. What convinced him was the rising price itself, plus the story wrapped around it. Every time the price went up, it seemed to prove the story was true, which made more people buy, which pushed the price up again, which seemed to prove the story even more. This is the engine of every mania: a loop where the story lifts the price and the price seems to confirm the story, round and round, with the actual worth of the thing left far behind on the ground. Rohan wasn't buying a business. He was buying a feeling that had a number attached to it. And the feeling, at ₹900, was almost pure story and almost no substance.

Hold Rohan there, near the top, with his whole savings just committed. We'll come back to see what happens to him. For now, just notice how reasonable it all felt to him at every step. Nobody in a mania thinks they are being silly. They think they are finally being smart, at last catching the wave that everyone else caught earlier.

Now let's watch the second and most dangerous ingredient do its work: the belief that the ordinary rules of worth have stopped mattering. illustrative

Meet Aayra, who is a bit more careful than Rohan. She looks at one of these smart-farming companies and does the sensible thing: she asks, "How much does it actually earn, and is ₹900 a fair price for that?" She finds something troubling. The company earns almost nothing. If you measured its price against its tiny earnings the normal way, ₹900 was the kind of price you'd only pay for a company earning many times more. By every old, plain measure of worth, the share was wildly, absurdly expensive.

In a calm year, that finding would end the story - Aayra would simply say no. But this is not a calm year, and here comes the poison. When Aayra mentions her worry to the excited crowd, she is told, kindly but firmly, that she just doesn't get it. "Those old measures are for old companies," they say. "You can't judge the future of farming with the maths of the past. Earnings today don't matter - it's about where this is going. This is a completely new era." The uncomfortable truth - that the price made no sense - gets waved away with the most expensive idea in all of investing: that this time, the rules are different. The moment a market stops being priced on what companies actually earn and starts being priced on a story about why the old limits no longer apply, a warning bell should ring - "this time it's different" is the phrase that has excused nearly every overpriced boom in history.

Here is the subtle, important part, and it's why smart people fall for this. Sometimes something genuinely is new. Real inventions do change the world. So "this time is different" cannot simply be dismissed as always wrong - that would be its own mistake. The honest test is a quiet one: does the "difference" show up in durable earnings you can actually point to, or does it show up only in the excuse for the price? If a company is genuinely earning more and more real rupees, that's a real difference. If the only thing that's "different" is the reason people give for ignoring the price, that's not a new era - that's the old mania wearing a new mask.

Aayra, to her great credit, holds her ground. She decides that a company earning almost nothing is not worth ₹900 to her no matter how thrilling the story, and she keeps her savings out. She feels foolish for months as the price keeps climbing and Rohan looks like a genius. Being right early feels exactly like being wrong. That, too, is part of the pattern - the careful person nearly always has to endure a long stretch of looking like a coward before the verdict arrives.

Now for the two ingredients that turn a normal boom into a monster: easy borrowed money, and a long calm that lulls everyone to sleep. These two work together, and they are the reason crashes are so violent rather than gentle. illustrative

Let's go back to Rohan. Suppose that near the top, a helpful app offers him something that sounds wonderful: for every ₹1 of his own, he can borrow ₹1 more to buy even more shares. He has ₹3,00,000; the app will lend him another ₹3,00,000, so he can control ₹6,00,000 of shares. If the price keeps going up, he makes double the gains! The story is so certain, the calm has lasted so long, that borrowing feels almost free of risk. So he does it. Now he owns about 666 shares at ₹900, but half of them are bought with money that isn't his.

Watch what the borrowing does on the way down. Suppose the price falls from ₹900 to ₹450 - cut in half. If Rohan had used only his own ₹3,00,000, he'd have ₹1,50,000 left: a painful loss, but he'd still have half his savings. But he borrowed. His ₹6,00,000 of shares is now worth ₹3,00,000 - and he still owes the ₹3,00,000 he borrowed. After paying it back, he has nothing left. A fall of one half wiped out all of his own money, because the borrowed portion has to be repaid in full regardless. Borrowed money doesn't just multiply your gains; it multiplies your losses and then hands you a bill. This is why bubbles fed by easy credit don't deflate softly - they collapse, as everyone who borrowed is forced to sell at once to pay back what they owe, and that forced selling drives the price down even faster.

And why did Rohan feel safe borrowing in the first place? Because of the fourth ingredient: the long calm. For years, the market had only gone up. Nobody he knew had been badly hurt. Every time prices dipped a little, they bounced right back, which taught everyone that dips were just chances to buy more. This is the sneakiest ingredient of all, because it disguises itself as safety. The longer things stay calm, the safer everyone feels, and the more they borrow and stretch - which is exactly what quietly builds the fragility that finally breaks. A long stretch where nothing goes wrong doesn't mean risk has vanished; it usually means people have relaxed, borrowed more, and piled up danger out of sight - the calm itself is often what sets up the crash.

So calm is not the absence of risk. In a mania, calm is risk being stored up, invisibly, behind a smiling face. The market feels safest at the exact moment it has become most dangerous, because "safe" is precisely the feeling that made everyone borrow.

We should pause on how the story travels, because understanding the spread helps you feel it happening to you. A mania story moves through a crowd the same way a cold moves through a classroom - by contact, and faster and faster as more people catch it.

Think about how Rohan actually caught the smart-farming story. He didn't sit down and study farming machines. He caught it from his brother-in-law, who caught it from a colleague, who caught it from a video, who caught it from someone who'd already made money. At each step, the story arrived not as a cold fact but as social proof: someone I know did well, so it must be real. And here's the accelerator - every new person who buys pushes the price up a little, and that higher price becomes fresh "evidence" the next person points to. The story doesn't just spread; it manufactures its own proof as it goes.

There's a cruel timing hidden in this. A cold spreads fastest when the most people are catching it at once - which is also just before it burns out, having run out of fresh people to infect. A mania is the same. The story is loudest, most convincing, and most widely believed right near the top, because that's when the greatest number of new people are pouring in. Which means the moment it feels most obvious, most certain, most "everyone knows this" - that is usually the moment closest to the end. The very strength of the feeling is a clue about how late it is. When you find yourself hearing about an "obvious" money-maker from people who never talk about investing - a distant relative, a cab driver, a classmate who can't explain what the company actually does - you're not early. You're hearing the sound of the story reaching the last people it can reach.

This is worth remembering because it flips a natural instinct. Normally, if lots of sensible-seeming people agree on something, that agreement is comforting - it usually means the thing is true. But in a mania the arithmetic reverses. Overwhelming, excited, price-fuelled agreement about a thrilling new thing is not extra safety. It is a sign the story has nearly finished spreading, and that most of the buying that can happen has already happened.

The slip almost never feels like greed or foolishness from the inside. It feels like catching up - like finally being sensible after being left behind for too long. That's what makes it so hard to resist.

Here's the exact shape of the trap. You notice a thrilling new thing early and, being careful, you stay out. Then you have to watch it climb for months while people who jumped in get richer and louder. Each rise feels like a personal slap: I was right there and I did nothing. The pain of that missing-out builds and builds until, near the very top, it finally overwhelms your caution - and you buy, with the most money, at the highest price, at the worst possible moment, precisely because the story is now at its most convincing. The mania doesn't catch careful people by making them reckless. It catches them by making them wait until waiting becomes unbearable, and then rewarding that surrender with a spot at the front of the crash.

Now the honest part, because "every boom is a bubble" is itself a way to be badly wrong.

The first trap is turning into someone who calls everything a mania and never invests at all. Not every rising price is a bubble. Not every new technology is a fairy tale. Genuine, world-changing inventions really do appear, and the companies behind them really do go on to earn enormous, durable profits that fully justify prices that looked mad at the time. A person so scarred by the idea of bubbles that they refuse every new thing, and leave all their money sitting in cash forever, has simply chosen a slower way to lose - their savings quietly shrinking as prices rise around them, year after year. The lesson was never "avoid everything exciting." It was "don't confuse a story with a sum."

The second trap is thinking this chapter tells you when to sell or how to time the top. It does not, and nobody can. A mania can climb far higher and last far longer than any sensible person expects - the story can keep spreading and the price can keep rising for months or even years after it stops making any sense. If you try to be clever and bet on the exact moment of the crash, the boom can bankrupt you before you're proved right. Recognising the pattern is about protecting yourself - not overpaying, not borrowing, not putting in money you can't afford to lose - not about outsmarting the crowd's timing. Spotting a bubble is a reason to be careful with your own money, never a reason to make a bold bet the other way.

And the third, quietest caution: the "this time is different" phrase is not always a lie, so don't swing so far the other way that you sneer at every genuine change. The trick is the honest test we met earlier - is the difference showing up in real, growing, durable earnings you can actually point to, or only in the excuse for the price? Sometimes the answer is genuinely the former, and dismissing it as a bubble would be a real mistake. The skill this chapter is really teaching isn't cynicism about everything new. It's the calm habit of always, always asking what a thing is worth - and refusing to let any story, however thrilling, talk you out of asking.