The Lindy Effect: Why Old Ideas Outlive New Ones
26-02-2026 · 10 min read · By Anshul Garg
Your favourite programming language will be dead in ten years. The one your grandfather could have written — SQL, designed in 1974 — will outlive your career. The self-help book you bought last month will be forgotten by Christmas. The Stoic text it was paraphrasing has been continuously read for 2,000 years. You spent $25 and twelve hours on the paraphrase. The original is free online.
This isn't a guess about any specific technology or book. It's a mathematical property of time itself, first noticed by comedians at a Manhattan deli called Lindy's in the 1960s. They observed that a Broadway show running for one year would probably run for another year. A show running for five years would probably last five more. The longer something survived, the longer it was likely to continue surviving.
Nassim Taleb later formalised this as the Lindy Effect: for non-perishable things — ideas, technologies, books, institutions, cultural practices — expected remaining lifespan is proportional to current age. A book in print for 50 years will likely be in print for 50 more. A book published last month has, statistically, a life expectancy of about a month.
This is one of the most powerful filters for deciding what to read, what to learn, what to build your life around, and what to ignore. It's also one of the most uncomfortable — because it says that almost everything competing for your attention right now will be gone before you've finished benefiting from it.
The Brutal Math of Survival
Why would age predict future survival? The intuition runs against our cultural bias toward novelty. We're wired to pay attention to the new — new apps, new frameworks, new management theories, new diets. The new gets press coverage, conference talks, and breathless Twitter threads. The old gets taken for granted.
But newness is a terrible predictor of durability. The vast majority of new things die. New restaurants, new startups, new ideas, new technologies — most of them fail within their first few years. The ones that don't fail in year one face year two. The ones that survive year two face year three. Each year is a filter, and each filter eliminates the fragile.
By the time something has survived for decades, it has been tested by every kind of stress the world can throw at it — economic crashes, cultural shifts, technological disruption, competition, neglect. If it's still standing, it's standing for structural reasons that won't evaporate tomorrow.
A new JavaScript framework has survived zero stress tests. React, at a decade old, has survived several. The C programming language, at fifty, has survived everything — and it will almost certainly outlast whatever was announced at last week's developer conference.
The Asymmetry of Evidence
Here's the statistical reasoning underneath the intuition. When something is new, you have very little information about its robustness. It might be brilliant. It might be garbage. You don't know yet, because time hasn't tested it.
When something is old, you have an enormous amount of information. Every year of survival is a data point. Every crisis it weathered, every competitor it outlasted, every cultural shift it absorbed — all evidence that the thing has properties (usefulness, adaptability, deep resonance with human needs) that the new thing hasn't demonstrated.
Time is the most ruthless editor in existence. It doesn't care about marketing, hype cycles, or bestseller lists. It only cares about whether something is useful enough, true enough, or beautiful enough to keep being chosen — generation after generation, without a publicist.
The Lindy Library: What to Read
The most immediate application of the Lindy Effect is in choosing what to read.
The publishing industry releases roughly 4 million new titles per year. The average book sells 250 copies in its lifetime. Most books published this year will be out of print within three years and forgotten within five. The information in them — even the good information — is usually available in older, better-tested sources.
Meanwhile, The Art of War has been continuously read for 2,500 years. Meditations by Marcus Aurelius has been in circulation for 1,900 years. The Wealth of Nations has been influencing economic thought for 250 years. These aren't famous because they're old. They're old because they captured something so fundamental about human nature, strategy, or reality that every subsequent generation found them useful.
The Self-Help Trap
This is where the Lindy Effect becomes genuinely useful as a filter. The self-help industry produces thousands of books per year, each promising a new framework for productivity, happiness, or success. Most of these books are repackaging ideas that are centuries old — dressed in contemporary language, padded to 300 pages, and marketed as breakthroughs.
If you want to understand persuasion, you could read the latest book on "influence hacking" — or you could read Aristotle's Rhetoric, which has been teaching the same principles for 2,400 years and will still be relevant when the latest book is pulped.
If you want to understand strategy, you could read a business school case study from 2024 — or you could read Thucydides on the Peloponnesian War, which has been the foundation of strategic thinking for generals, diplomats, and executives for 2,500 years.
The Lindy-informed reader doesn't avoid new books. They just apply a higher evidentiary bar to them. A new book needs to demonstrate that it contains something genuinely novel — something the old books don't cover. Most don't clear that bar.
Technology and the Lindy Illusion
The Lindy Effect creates an uncomfortable tension with our worship of technological progress. We're taught that newer is better — that the latest version is always an improvement, that innovation is always positive, that to resist adoption is to be a Luddite.
For hardware and tools that improve through engineering — microprocessors, medical devices, solar panels — this is largely true. Moore's Law isn't a Lindy phenomenon; it's an engineering phenomenon.
But for software, frameworks, methodologies, and organisational practices, the Lindy Effect reasserts itself viciously. The technology graveyard is vast: CoffeeScript, Flash, Google+, Vine, Blackberry, Second Life, Google Wave. Each was, at its peak, covered as the future. Each failed the Lindy test.
The Survivorship of Programming Languages
Consider programming languages. COBOL, written in 1959, still processes an estimated 95% of ATM transactions and 80% of in-person financial transactions globally. It's older than most programmers' parents. Every year, someone writes a think piece about COBOL being "dead" — and every year, billions of dollars flow through systems written in it.
SQL was designed in 1974. It's the universal language of data. Every "revolutionary" database technology eventually adds a SQL interface, because SQL is what people know and what works. The technology that was supposed to replace it — NoSQL — has largely become "Not Only SQL," an acknowledgment that the 50-year-old standard isn't going anywhere.
Technologies don't survive because they're the best possible design. They survive because they've accumulated an ecosystem — tools, knowledge, trained practitioners, integration points, debugging wisdom — that no new technology can replicate overnight. The Lindy Effect in technology is as much about accumulated investment as about intrinsic quality.
Where Lindy Fails
The Lindy Effect is powerful, but it has boundaries. It applies to non-perishable things — ideas, technologies, cultural practices, institutions. It does not apply to perishable things — human beings, individual companies, biological organisms.
A 90-year-old human is not expected to live another 90 years. A specific company that's been around for 100 years may not last another 100 — companies face disruption, succession crises, and market shifts that don't obey Lindy dynamics. The Roman Empire lasted a millennium; its longevity did not prevent its fall.
The distinction is between the category and the instance. Democracy as a concept is Lindy — it's been around for 2,500 years and will likely persist. Any specific democratic government is not Lindy — it can collapse from corruption, invasion, or institutional failure.
When Lindy Thinking Destroys You
In 2005, Steve Ballmer — CEO of Microsoft, one of the most experienced technology executives alive — laughed at the iPhone. "Five hundred dollars? Fully subsidised? With a plan? That is the most expensive phone in the world." He wasn't wrong about the price. He was applying Lindy reasoning: phones had physical keyboards for fifteen years, enterprise customers demanded them, BlackBerry was the proven survivor. The new thing (a touchscreen slab with no keyboard) hadn't passed any tests. Lindy said ignore it.
Within five years, Microsoft's mobile business was dead. BlackBerry's market share went from 20% to under 1%. The Lindy-tested form factor was obliterated by something that had existed for six months.
Lindy thinking would have told you to ignore the internet in 1995. It would have told you to ignore Bitcoin in 2012. It would have told you to keep your money in Kodak stock in 2005. Every paradigm shift, by definition, starts as a non-Lindy object — it's new, untested, and contradicts everything that's survived before it. The paradigm shifts that matter are precisely the ones that Lindy can't see coming.
This is the critical nuance: Lindy is a prior, not a verdict. It tells you where to set your default expectation, not where to stop thinking. When a new thing claims to be superior, the burden of proof is on the new thing — and that burden should be proportional to the age of what it claims to replace. But when the new thing clears that burden — when it solves a genuinely unsolvable problem, when it produces results the old thing can't match — Lindy demands you update, not dig in.
The Lindy Effect doesn't say "old is always better." It says "old has passed tests that new hasn't." The dangerous version of Lindy isn't using it as a filter. It's using it as a fortress — hiding behind "it's always been this way" to avoid the discomfort of a world that's changing underneath you.
The Lindy Life
The deepest application of the Lindy Effect isn't in choosing books or technologies. It's in choosing how to spend your finite time and energy.
Every year, the world presents you with a buffet of new things to learn, new tools to adopt, new trends to follow, new skills that are "essential for the future." The implicit message is: if you don't keep up, you'll be left behind.
The Lindy Effect offers a radical alternative: instead of chasing what's new, invest in what's old. The skills and knowledge that have been valuable for centuries — clear writing, logical reasoning, understanding human psychology, basic numeracy, the ability to persuade, the ability to learn — will almost certainly be valuable for centuries more.
Learning to write well has been a career advantage for 5,000 years. Learning the latest no-code platform has been a career advantage for about 18 months. One of these investments will compound for your entire life. The other will depreciate faster than a new car.
This doesn't mean ignoring new developments. It means building your foundation from Lindy materials — proven ideas, timeless skills, ancient wisdom that has survived because it works — and then selectively adopting new tools when they've demonstrated enough staying power to be worth the investment.
The comedians at Lindy's deli weren't deep thinkers. They were making an observation about which shows would still be running next season. But the observation contained a truth that extends far beyond Broadway: the best predictor of what will matter tomorrow is what has mattered for a very long time. The old isn't old because it's outdated. It's old because it's been right for so long that we've stopped noticing.