Every Technological Revolution Starts as 'Hype', 'Mania', or 'Bubble'. Railways Proved It. AI Will Too.

 

The loudest critics of new technology are often right about the bubble — and completely wrong about the future.

#AIHype   #RailwayMania   #AIisHereToStay   #TechHistory

Open any news app today and you’ll hear two stories about artificial intelligence at once. One says AI is the future and will change everything. The other says it’s a giant bubble that’s about to pop. Both sides sound completely certain. So how do you know who to believe?

Here’s a trick that works surprisingly well: when you can’t tell who’s right, look at history. Because we have, in fact, been here before. Almost 180 years ago, an entire country lost its mind over a brand-new technology. People called it a mania, a bubble, and pure hype. It would create world peace. And here’s the fascinating part — they were partly right. But they were also spectacularly wrong. That technology was the railway, and the telegraph line that accompanied each line, and it went on to reshape the entire world.

The Story of “Railway Mania”

In the 1840s, Britain fell in love with the steam train. For the very first time in human history, people and goods could travel faster than a galloping horse. A trip that once took days now took hours. To people back then, it genuinely felt like magic.

And so the money came pouring in. Between 1844 and 1846, hundreds of new railway companies were launched, and ordinary people — not just rich bankers, but shopkeepers, teachers, and widows — threw their life savings into railway shares.^[1] Newspapers overflowed with railway advertisements. Share prices doubled, then tripled. Everyone was convinced they were about to get rich. The frenzy even earned its own name: Railway Mania.

At the peak in 1846, Parliament approved hundreds of new railway companies planning thousands of miles of track in a single year — close to the size of the entire modern UK rail network, all proposed at once.^[1]

Then, in 1847, reality arrived. There simply wasn’t enough real money to build all those railways. Share prices collapsed. Companies went bankrupt. Thousands of families lost everything they had saved. The bubble had burst — exactly as the doubters had warned.^[1]

But here’s the twist almost everyone forgets. The trains kept running. The crash wiped out a lot of investors, but it did not wipe out railways. Over the following decades, the tracks that did get built connected cities, created millions of jobs, carried food and coal across the country, and powered the Industrial Revolution. The bubble was real — and so was the revolution.^[2]

The AI Story Today

Now jump forward to the 2020s. A new technology has arrived that, once again, feels like magic. AI tools can write essays, draw pictures, build computer programs, and answer almost any question in seconds. One of them, ChatGPT, reached 100 million users in just two months — making it one of the fastest-growing products in history.^[3]

And just like in the 1840s, the money is flooding in. Companies are spending hundreds of billions of dollars on AI — on computer chips, on enormous data centres, and on the experts who design these systems.^[4] The headlines never stop. Some say AI will solve humanity’s biggest problems. Others insist it’s a massive bubble that will burst and destroy fortunes.

Sound familiar? It should. The pattern is almost identical to Railway Mania — which is exactly why history is worth studying.

How Railways and AI Compare

Of course, trains in 1846 and AI in 2026 are not the same thing. To think clearly, we need to see both where they match and where they don’t.

The Striking Similarities

Feature	Railways (1840s)	AI (2020s)
A “magic” new technology	Travel faster than ever before	Machines that seem to think
A flood of money	The public buys railway shares	Billions poured into AI
Huge excitement and fear	Called a “mania”	Called “hype” and a “bubble”
Loud doubters	Warned of a financial crash	Warn of a financial collapse due dominance of "magnificent 7" in S&P500.
Real, lasting usefulness	Changed transport forever	Already changing how we work and learn.

The most important similarity is this: in both cases, the technology is genuinely useful. Railway Mania was never hype about a fake product — trains really worked. In the same way, AI isn’t pretending to write your essay; it actually does it. And that’s the key. When a bubble is built on something real, the bubble can burst while the technology underneath survives and keeps growing.

The Important Differences

The differences matter just as much, and they point in opposite directions.

1. Speed. Railways took decades to spread, because workers had to physically lay every single mile of iron track. AI spreads at the speed of the internet. A new AI tool can reach the entire planet overnight. That means both the boom and any crash could happen far faster than they ever did in Victorian Britain.

2. What gets left behind. When the railway bubble burst, the tracks remained — solid steel that lasted a hundred years. AI’s “tracks” are computer chips and data centres, and these go out of date within just a few years.^[4] So if AI investment crashes, far less long-lasting stuff may survive the wreckage.

3. What it changes. Railways transformed how we move. AI transforms how we think and work — in schools, hospitals, offices, and art studios. That makes AI’s effects harder to predict, because it touches almost every part of human life at the same time.

The lesson underneath both stories: a bubble bursting or when company's assets prices are overvalued and lose all proportion with its actual revenue, is not the same as a technology failing. History is full of financial crashes that corrected inflated prices, that destroyed investors while the technology itself went on to win.^[5]

Three Clear Takeaways

1 A bubble doesn’t mean the technology is fake.

Railway Mania really did crash, and many people really did lose their money. But trains were never a trick — they reshaped the world for over a century. So if AI is in a bubble today, that bubble may well pop. It still won’t make AI disappear. The real technology will outlive the financial drama every time.

2 The loudest voices — on both sides — are usually a bit wrong.

The people who shouted “railways will make everyone rich forever” were wrong. The people who shouted “railways are pure madness with no future” were wrong too. The truth sat in the boring middle: a painful crash, followed by a genuine revolution. Expect the same with AI — not endless riches, not total disaster, but real and lasting change taking decades to mature.

3 History rhymes, so it pays to learn from it.

Every great technology — railways, electricity, the internet, and now AI — arrives wrapped in the same noise of “hype,” “mania,” and “bubble.” Knowing this pattern lets you stay calm and think clearly while everyone around you panics or cheers. The smartest move is not to ignore AI, and not to worship it. It’s to understand it, learn to use it well, and get ready for the world it’s building.

Railways proved that revolutions begin as hype. AI is proving it all over again. And if the past tells us anything about the future, the most important part of this story hasn’t even happened yet. We ain’t seen nothing yet.

References & Bibliography

1. Odlyzko, A. (2010). Collective hallucinations and inefficient markets: The British Railway Mania of the 1840s. University of Minnesota. Available at: www.dtc.umn.edu/~odlyzko/doc/hallucinations.pdf
2. Wolmar, C. (2007). Fire and Steam: A New History of the Railways in Britain. London: Atlantic Books.
3. Hu, K. (2023). “ChatGPT sets record for fastest-growing user base.” Reuters, 2 February 2023. Available at: reuters.com
4. International Energy Agency (2024). Electricity 2024: Analysis and forecast to 2026 (data centres and AI). Paris: IEA. Available at: iea.org/reports/electricity-2024
5. Quinn, W. & Turner, J. D. (2020). Boom and Bust: A Global History of Financial Bubbles. Cambridge: Cambridge University Press.