The Lindy Effect: How to Predict What Lasts

For most things in life — people, cars, dogs — aging is a death sentence. The older a person is, the closer they are to the end. This is "perishable" aging. But for ideas, books, technologies, and institutions, aging works in reverse. This is the Lindy Effect.

The Lindy Effect states that for non-perishable things, the future life expectancy is proportional to their current age. If a book has been in print for 50 years, it’s likely to be in print for another 50. If it’s been in print for two weeks, it’s lucky if it lasts another month.

In other words: the best predictor of how long something will last is how long it has already survived.

We are obsessed with "the new." We chase the latest apps, the latest productivity hacks, and the latest business trends. But time is the ultimate filter. If an idea has survived for 2,000 years (like Stoicism), it’s because it addresses something fundamental about the human condition that doesn't change. If a trend started on TikTok yesterday, it will likely be forgotten by Tuesday.

Lindy is a filter for quality. Survival is the only proof of robustness.

Benoit Mandelbrot, the mathematician who popularized the term, named it after Lindy’s Deli in New York. Comedians would gather there and observe that the shows that had already run for 100 weeks were destined to run for many more, while the newcomers usually fizzled out.

Nassim Taleb, in *Antifragile*, turned Lindy into a rigorous decision-making tool. He argues that we should prioritize "Lindy-compatible" information. Don't read a book that came out this year; read the one that's been around for 50. The new book is "fragile" to time; the old book has already survived the fire.

Warren Buffett is a Lindy investor. He doesn't bet on the "next big thing" that might disappear in five years. He bets on things people will still be doing in 50 years: drinking Coca-Cola, using insurance, buying furniture, and eating candy. He bets on the survival of the fundamental.

Steve Jobs, despite being a tech titan, was deeply influenced by Lindy design. He obsessed over the "timelessness" of products. He wanted the Mac to look like something that could have existed 20 years ago and would still look good 20 years from now. He aimed for the 100-year shelf life, not the 18-month upgrade cycle.

Read the classics. If you want to understand human nature, don't read a pop-psychology book from 2024. Read Marcus Aurelius, Seneca, or Montaigne. They've survived centuries of cultural shifts because their insights are Lindy-proof. If an idea is 2,000 years old and still useful, it’s likely a fundamental truth.

Use proven technology. In your work and business, lean on tools that have stood the test of time. SQL, Markdown, and C have been around for decades. The latest "revolutionary" framework might be gone in three years. Build your foundation on the Lindy-robust, and use the new stuff only at the edges.

Invest in timeless skills. Learning how to write clearly, speak persuasively, and think critically are Lindy skills. They were valuable in ancient Rome and they will be valuable in 2100. Learning a specific version of a software package is a perishable skill. Master the fundamentals first.

Respect tradition (until you prove it's wrong). Traditions are often just solutions to problems we've forgotten we had. Before you "disrupt" a long-standing process, ask why it has survived for so long. It might be inefficient, but it’s likely robust. Don't tear down a fence until you know why it was put up (Chesterton's Fence).

Choose the "long" path. When starting a project, ask: "Will people care about this in 10 years?" if the answer is no, you're building on sand. If the answer is yes, you're building a Lindy asset. Momentum compounds most powerfully on things that don't need to be replaced.

Audit your "inputs" from the last 24 hours (books, articles, podcasts, social media). What percentage of those inputs are less than a year old? What percentage are more than 20 years old?

This week, try to shift the ratio. Replace one "new" input with one "Lindy" input — a classic book, a foundational essay, or a time-tested philosophy. Notice the difference in the "density" of the information. New information is often noise; old information is usually signal.

Antifragile by Nassim Nicholas Taleb — Chapter 15 is the definitive deep dive into the Lindy Effect and why "time is the only judge." A mind-bending look at how to navigate a world where the new is fragile and the old is robust.