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Causation

Why Nothing You've Ever Done Had a Single Cause

Every decision you've ever made was the result of an uncountable number of prior conditions — and the uncomfortable question is whether that leaves any room for you at all.

The Idea

We have an almost unshakeable habit of identifying causes as single, discrete things. The match caused the fire. Stress caused the headache. One bad decision caused the falling out. It is a useful shorthand, but it is a profound distortion of how causation actually works. Philosophers call our everyday picture of causation 'the INUS condition' — a cause is an Insufficient but Necessary part of an Unnecessary but Sufficient condition. In plain terms: the match was necessary given everything else that was present, but the 'everything else' is doing most of the work. Oxygen, dry wood, the wind, your decision to strike it, the circumstances that led you there. Remove any one of these and the fire doesn't happen. This matters because the moment you loosen your grip on single-cause thinking, the world becomes genuinely strange. Buddhist philosophy has a name for this: dependent origination — the idea that every phenomenon arises in dependence on a vast web of other phenomena, with no independent origin anywhere in the chain. Nothing is self-caused. Nothing is isolated. Every event is more like a knot in a net than a bead on a string. The implications spiral in several directions at once. Blame becomes harder to pin. Credit becomes harder to own. The concept of a 'clean' beginning — of truly starting fresh — starts to look philosophically naive. And yet our legal systems, our narratives about success and failure, and our emotional lives are almost entirely built on the fiction of the singular cause.

In the World

In 2003, the largest blackout in North American history knocked out power for roughly 55 million people across the northeastern United States and Canada. Investigators spent months looking for the cause. What they found was not a cause but a cascade: a software bug in an alarm system in Ohio failed to alert operators to a sagging power line. The line brushed against overgrown trees. A small surge rippled outward. Other plants, misreading the surge, automatically shut down to protect themselves — which increased load on their neighbours, which triggered more shutdowns. Within two hours, 256 power plants had gone offline. Reporters wanted a villain. They found the Ohio utility FirstEnergy and held up the alarm bug as the cause. But engineers pushed back: that bug was the spark, not the fire. The fire was the entire structure — deregulated grid management, inadequate tree-trimming protocols, a cascading architecture with no circuit-breaker for systemic failure. The deeper you looked, the further back the causes stretched: policy decisions from the 1990s, infrastructure investment choices from decades earlier, the sheer complexity of a continent-scale system built up incrementally by thousands of actors over a century. There was no single moment where you could point and say: here, this is what caused the blackout. There was only the net, and the particular configuration it happened to be in.

Why It Matters

Sitting with the idea that causes are always plural, always nested, and always trailing back further than you can see — this is not just a philosophical puzzle. It is a genuine reorientation in how you hold your own story. When you achieve something, the temptation is to locate the cause in yourself — your discipline, your talent, your choices. When things go wrong, the temptation runs the other way: to find the one bad actor, the one mistake, the one moment to blame. Both moves are consoling fictions. They give the story a shape it doesn't actually have. What changes when you genuinely absorb the web-like nature of causation is something closer to humility — not passivity, but a loosening of the tight, anxious grip we keep on credit and blame. You start to notice the conditions that made your good choices possible. You become a little more curious about the pressures shaping other people's bad ones. This is not moral relativism. It is moral precision. Causes still matter. Actions still have consequences. But the quality of your attention to both becomes richer when you stop looking for a single culprit and start reading the whole net.

A Question to Ponder

Think of one decision you made recently that you're proud of or regret — what conditions would you have to trace back to in order to honestly account for why it happened?

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