The Lindy Effect
For non-perishable things, the longer they've survived the longer they'll last
- Difficulty
- Easy
- Time to result
- ~ongoing to results
- Steps
- 4
- Confidence
- 70%
The Lindy effect is a mental model for reasoning about the future life expectancy of non-perishable things such as ideas, technologies, books and formats. Its mechanism is simple: for things that do not naturally decay, expected remaining lifespan is proportional to current age. A book like 1984, around for 35 years, can be presumed to last at least another 35, whereas a one-year-old bestseller carries no such guarantee. The hosts use it as an attention-allocation lens: email is Lindy, so it should be the durable hub of a business, while whatever platform is currently hot is an extraneous spoke that may disappear. The practical takeaway is to anchor your effort to the most time-tested option rather than the most fashionable one.
Origin
A mental model popularised by Nassim Taleb; Williamson explains it on air to Johnny and Yusuf as the reason email outlasts social platforms and should anchor long-term strategy.
Core principles
- 01Age is evidence of survival for non-perishable ideas, tools and formats
- 02Anchor your attention to what will still exist in a decade
- 03Chase durable channels over whatever is currently fashionable
- 04Recency is not the same as robustness
How to run it
- 1
Identify the candidate as non-perishable
Confirm the thing in question is an idea, tool or format that does not physically decay, so age can act as a survival signal.
Watch out The model only applies to non-perishable things; do not apply it to items with a natural expiry.
- 2
Measure how long it has survived
Establish how many years the thing has already been around as your baseline for projecting forward.
- 3
Project a comparable remaining lifespan
Presume the thing will last roughly as long into the future as it already has into the past.
Pro tip A 35-year-old book implies at least 35 more years; a one-year-old fad implies little.
- 4
Anchor effort to the most Lindy option
Make the most durable option the hub of your strategy and treat trendier, shorter-lived channels as replaceable spokes.
Pro tip Ask of any hot platform: how long will this actually be around? Then weight your attention accordingly.
In the wild
Williamson contrasts a creator with 200,000 Instagram followers but only 2,000 email subscribers. Instagram could disappear, but email has been around for decades and is therefore likely to persist. He frames email as the Lindy hub: if you have a large list, you can seed any new platform from it, whereas platform-specific audiences evaporate when the platform fades. The Lindy lens makes the durable channel the obvious place to concentrate.
→ A defensible rule for prioritising email and durable formats over fragile social reach.
Common mistakes
Confusing hype with durability
A tool being popular right now says nothing about its lifespan; only its track record does.
Applying it to perishables
The model breaks for things with a natural expiry; age only signals survival for non-perishable ideas and formats.
Is it for you?
Best for
Creators and operators deciding where to invest scarce time and attention for the long run.
Not ideal for
Situations demanding fast exploitation of a fleeting trend where durability is irrelevant.
From the transcript
“the Lindy effect is a mental model which describes the degradation of non-perishable goods and services.”
“1984 is a Lindy book, it's been around for 35 years. Always, therefore, you can presume it's going to be around for at least 35…”
From the episode
What I Would Tell My 18 Year Old Self - #131