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title: The Sturgeon’s Law
modified: 2026-06-10
tags: []
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> “90% of everything is crud/crap.” — Theodore Sturgeon

# What is Sturgeon’s Law?

[Sturgeon’s Law](https://www.google.com/search?q=Sturgeon%27s+Law), also called **Sturgeon’s Revelation**, is an aphorism coined by science fiction writer [Theodore Sturgeon](https://www.google.com/search?q=Theodore+Sturgeon). He first stated it in 1951 in defense of science fiction against critics who claimed that 90% of _everything_ is bad, not just science fiction.

The law is less a pessimistic verdict on quality and more a calibration tool: given any large body of work, ideas, or output, the majority will be mediocre. That’s not a bug — it’s a baseline.

# Key Ideas

* **The 90% is the cost of the 10%.** Mediocrity is the price of volume. You can’t reliably produce the outstanding without wading through a lot of ordinary.
* **It applies universally.** Books, films, music, ideas, blog posts, startups, advice, scientific papers — no domain is exempt.
* **It’s not an excuse to quit early.** The 10% exists. Your job is to find it, create it, or become it.
* **Quantity enables quality.** [^1] [The one percent rule](the-one-percent-rule.md) and deliberate output over time are how the excellent surfaces from the noise.

# Implications

* **Don’t judge a field by its noise floor.** Critics who dismiss entire genres, disciplines, or communities are usually only seeing the 90%. Dig deeper before concluding.
* **Filter ruthlessly.** This is the core argument for a [low-information-diet](low-information-diet.md) and [news-sobriety](news-sobriety.md) — most content does not add signal.
* **Stay humble as a creator.** Most of your own output will be in the 90%. That’s okay. Ship consistently and let the excellent emerge over time.

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[99% of effort is wasted](99-percent-of-effort-is-wasted.md)

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[Do great work](do-great-work.md)

[^1]: 量變產生質變。Quality is a byproduct of quantity.