LONG READ Long Read · May 2026 · ~5 min
Anatomy of a bubble
Tulips, the South Sea Company, the internet, crypto — every bubble changes its clothes, yet the skeleton is startlingly the same. Economic historians mapped its anatomy long ago: nearly every time, it plays out in the same five acts.
Five stages
- Displacement: a genuinely new thing appears (a technology, a market) and lights the imagination;
- Boom: prices rise, credit follows, the story begins to reinforce itself;
- Euphoria: newcomers buy only to "sell higher," valuation yields to narrative;
- Profit-taking: smart money quietly exits, but the music plays on;
- Panic: confidence reverses, liquidity vanishes, price collapses as fast as it rose.
The most dangerous sentence in a bubble is always "this time is different."
Why we keep re-staging it
Because a bubble's fuel is not stupidity but human nature: fear of missing out, herding, mistaking a rising price for proof of one's own cleverness. Every generation believes it can leave before the music stops — which is, itself, the definition of the euphoria stage.
Further: a bubble is the sentiment pendulum at its extreme — see The pendulum of cycles and sentiment. On why correlated assets crash together when it bursts, see The illusion of correlation.