# Via Negativa: How to Improve Your Life and Work by Subtraction

> Via negativa means improving by removing, not adding. Learn where the idea comes from, how to apply it in 5 steps, and when subtraction beats addition.

Canonical: https://mentarium.io/mental-models/via-negativa.md

Mental model

6 min read By [Nemo](https://mentarium.io/about) Updated October 30, 2026

> **Via negativa** is the practice of improving something by taking away what harms it instead of adding what might help. Popularized for decisions by Nassim Taleb, it rests on a simple asymmetry: we usually know more clearly what is bad for us than what is good, so removal is the safer, more reliable move.

- **Category**: Mental model (decision-making and simplicity)
- **Origin**: Apophatic theology; popularized by Nassim Taleb, 2012
- **Best used for**: Fixing a cluttered plan, product, schedule or habit
- **Related**: Antifragility, inversion, Pareto principle

## Ask yourself

- What could I remove here instead of add?
- Which of my current habits, tools or commitments is doing the most harm?
- If I were starting from zero, which of these things would I not take on again?
- What am I keeping only because I already paid for it?
- What do I know for sure is bad, even if I am unsure what is good?

## What is via negativa?

Via negativa means getting better by removing things rather than adding them. Instead of asking “what should I start doing?”, you ask “what should I stop doing?”

The logic is an asymmetry of knowledge. You often cannot be sure a new habit, feature or rule will help, because adding something to a complex system creates side effects you did not plan for. But you can often be quite sure that a specific thing is hurting you: the meeting nobody needs, the smoking habit, the feature that confuses users. Removing a known harm is a more reliable bet than adding an uncertain benefit.

Via negativa does not say subtraction is always right. It says subtraction should be your first check, because people skip it by default.

## Where it comes from

The phrase is Latin for “the negative way” and comes from apophatic (negative) theology. Medieval theologians argued you could not say what God is, only what God is not, so the path to understanding ran through negation.

Nassim Nicholas Taleb moved the idea into everyday decision-making in _Antifragile_ (2012). His argument: in medicine, finance and policy, interventions often cause harm the intervener did not foresee (he uses the medical term iatrogenics, harm caused by the healer). Removing things, such as a toxin, a debt or an unneeded rule, tends to have fewer surprises than adding something.

There is also modern evidence that people overlook subtraction. In a 2021 paper in _Nature_, Gabrielle Adams, Benjamin Converse, Andrew Hales and Leidy Klotz ran a series of experiments where people were asked to improve an object, a piece of writing or an itinerary. Most participants added things, even when removing would have worked better, and they were more likely to notice the subtractive option when they were explicitly cued to consider it.

The same spirit shows up in design. Antoine de Saint-Exupéry wrote in _Wind, Sand and Stars_ (1939) that perfection is reached not when there is nothing more to add, but when there is nothing left to take away.

## How to use via negativa

1. **Write down the goal, not the solution.** “Ship faster” or “sleep better,” not “buy a new project tool” or “take a supplement.” A goal leaves room for removal; a solution already assumes addition.
2. **List everything currently in the system.** Every meeting, subscription, feature, commitment or habit that touches the goal. You cannot subtract what you have not listed.
3. **Mark what you know is harmful.** Ask which items you are confident make things worse. Confidence matters here: via negativa works best on known harms, not hunches.
4. **Check the fence before you tear it down.** For each item, ask why it exists. This is [Chesterton’s fence](https://mentarium.io/mental-models/chestertons-fence): if you do not know what a rule or feature is for, find out before removing it.
5. **Remove one thing, then watch.** Subtract the biggest known harm first, wait long enough to see the effect, then repeat. Only after the subtraction pass should you consider adding anything.

A useful pairing is the [Pareto principle](https://mentarium.io/mental-models/pareto-principle): if a small share of your activities produces most of your results, the rest are candidates for removal.

 The Mentarium Field Guide

60 mental models, organized by the decision in front of you

Each model on one or two pages: when to use it, the questions to ask, an example and the trap. Plus the 25 biases that break decisions and 12 ready Model Stacks.

 [See Field Guide · $14](https://mentarium.io/shop/field-guide)

## 3 real-world examples

### Business

Say a software team keeps missing release dates. The instinct is to add: a new project tool, a daily standup, another manager. A via negativa pass asks what to take away. The team finds three recurring meetings that produce no decisions, a review step that duplicates automated tests, and a half-built feature that keeps breaking the build. Removing those frees more time than any tool would add, and nothing new had to be learned. (This is a hypothetical example.)

### Personal life

Someone who wants more energy might look for a new morning routine, supplements or a fitness app. The subtractive version is usually more effective and more boring: stop drinking caffeine after noon, stop scrolling in bed, cut the second glass of wine on weeknights. Each removal targets something widely understood to hurt sleep, which is a safer bet than any single addition whose benefit is uncertain.

### Investing

Many investors try to improve returns by adding: more positions, more strategies, more research subscriptions. Via negativa asks what to remove instead. High fees, frequent trading and leverage on positions you do not fully understand are well-known drags on long-run returns. Removing them is a guaranteed improvement in a way that picking the next winning stock is not. Taleb’s own view is similar: avoiding ruin matters more than finding the extra edge.

## Common mistakes

- **Subtracting what is actually missing.** If the problem is that something essential is absent (no savings, no tests, no customer feedback), cutting more will not help.
- **Removing without understanding.** Tearing out a process because it looks pointless, before learning why it was put there, can reintroduce the problem it solved.
- **Treating it as a one-time purge.** Systems accumulate clutter continuously. Subtraction needs a recurring slot, like a quarterly review of meetings and subscriptions.
- **Keeping things because you paid for them.** The [sunk cost fallacy](https://mentarium.io/biases/sunk-cost-fallacy) is the main reason obvious removals do not happen. What you spent is gone either way.
- **Confusing it with austerity.** Via negativa is not about having as little as possible. It is about removing harm. A full life with no known harms is fine.

## Via negativa vs inversion

Both models start from the negative side, which is why they are often confused. [Inversion](https://mentarium.io/mental-models/inversion) is a way of thinking: you ask how a plan could fail. Via negativa is a way of acting: you improve by removing.

|  | Via negativa | Inversion |
|---|---|---|
| Core question | What can I remove? | How could this fail? |
| Output | An action (cut something) | An insight (a list of failure modes) |
| Best stage | Fixing an existing system | Planning or reviewing a decision |
| Typical result | Simpler product, schedule or portfolio | Risks you can now avoid |
| Main risk | Cutting something useful | Analysis without action |
| Works well with | Chesterton’s fence, Pareto principle | Pre-mortem, second-order thinking |

In practice they work as a pair: inversion finds what is causing failure, and via negativa removes it.

## The Mentarium take

Via negativa is the most underused move in the [Mentarium Decision Loop](https://mentarium.io/decision-making/decision-making-process). In the Map step, most people list options that add something: hire, buy, launch, learn. We think every Map should include at least one subtractive option, written out as explicitly as the others: “stop doing X,” “cancel Y,” “drop Z.” It often turns out to be the cheapest option on the list and, because removal is usually reversible, a low-risk first experiment.

Our rule of thumb: before you add anything to a system you already run, remove one thing from it. If you cannot find anything worth removing, you have learned the system is leaner than you thought, and the addition is more likely to be justified. If you can, you might not need the addition at all.

Via negativa also pairs well with [antifragility](https://mentarium.io/mental-models/antifragility). Taleb’s broader point is that systems which avoid known harms and keep their downside small are the ones that survive long enough to benefit from volatility. Subtraction is how you get there.

**Counters** [Sunk Cost Fallacy](https://mentarium.io/biases/sunk-cost-fallacy)

## FAQ

### What does via negativa mean?

Via negativa is Latin for "the negative way." It started as a way of describing God by saying what God is not. Today it usually means improving something by removing what harms it rather than adding something new.

### Who popularized via negativa?

Nassim Nicholas Taleb brought the term into everyday decision-making in his 2012 book Antifragile. He argues that subtracting harmful things is more robust than adding interventions whose side effects you cannot predict.

### Is via negativa the same as minimalism?

Not quite. Minimalism is an aesthetic or lifestyle preference for having less. Via negativa is a decision rule: when you want an improvement, check first whether removing something gets you there, because removal tends to carry fewer unknown side effects.

### When should you not use via negativa?

When something is missing rather than in excess. A team with no testing process, a diet with no protein or a business with no sales channel needs addition. Subtraction is a strong default, not a universal answer.

### How is via negativa related to inversion?

Inversion asks how you could fail so you can avoid it. Via negativa takes the next step and removes the things that cause failure. Inversion finds the problem; via negativa is often the fix.

## Related models & biases

[Mental model Antifragility Antifragility is the property of systems that get stronger from stress, volatility and mistakes, up to a point. Nassim Taleb coined the term in 2012 for the opposite of fragile: a fragile thing breaks under shocks, a robust thing resists them, and an antifragile thing improves because of them.](https://mentarium.io/mental-models/antifragility) [Mental model Inversion Inversion is a mental model that approaches a problem from the opposite end: instead of asking how to succeed, you ask what would guarantee failure, then avoid those things. It also means testing a belief by asking what would have to be true for the opposite to be right. Charlie Munger made it famous in business.](https://mentarium.io/mental-models/inversion) [Mental model Pareto Principle (80/20 Rule) Explained With Examples The Pareto principle, or 80/20 rule, is the observation that in many systems a small share of causes produces most of the effects: a few customers bring most of the revenue, a few bugs cause most of the crashes. The 80 and 20 are a rough shape, not a law.](https://mentarium.io/mental-models/pareto-principle) [Mental model Chesterton's Fence Chesterton's fence is the principle that you should not remove a rule, process or structure until you understand why it was put there. Named after a parable by G. K. Chesterton, it asks reformers to find the original purpose first, then decide whether that purpose still matters.](https://mentarium.io/mental-models/chestertons-fence) [Cognitive bias Sunk Cost Fallacy The sunk cost fallacy is the tendency to keep investing in a project, plan or relationship because of the time, money or effort already spent, even when the future costs outweigh the future benefits. Past costs cannot be recovered, so a rational choice ignores them and compares only what lies ahead.](https://mentarium.io/biases/sunk-cost-fallacy)

 Mentarium Decision Coach · free

Use this with your AI

Connect the free Decision Coach to Claude or ChatGPT and it walks you through the Decision Loop, picks the right Model Stack and runs the Bias Radar on your reasoning.

 [Connect it free](https://mentarium.io/coach)

 Mentarium Decision Coach · free

Use this with your AI

 [Connect it free](https://mentarium.io/coach)