Epistemology
What we can know about markets, and how we know it.
What 'emergence' means here
Emergence is not a metaphor we borrowed to sound deep. It is a documented property of complex systems: when many simple parts interact, the whole acquires behavior that none of the parts has on its own, and that you cannot predict by studying the parts in isolation. Markets are one of these systems. So is this community.
Evidence levels: E0 to E5
Every claim in this wiki carries an evidence level from E0 to E5. The level does not say whether the claim is interesting or useful. It says how good the evidence behind it is. E0 is the strongest — raw, verifiable data. E5 is the weakest — speculation, clearly flagged as such. The point is not to hide weak claims. It is to never let a weak claim wear the clothes of a strong one.
Reflexivity
Participants watch the patterns the market produces, and then change how they trade because of what they saw. That changes the patterns. Reflexivity is this loop: the emergent behavior of the system feeds back into the agents who make up the system, which feeds back into the behavior. There is no fixed "true" level the market is converging on while everyone watches. The watching is part of the market.
Finitude
For price to move, it has to consume the orders standing in its path. Liquidity is finite — it gets used up. This sounds trivial, and it generates the most basic rhythm in markets: the alternation between accumulation and distribution. A market cannot expand indefinitely in one direction because it runs out of fuel. It has to stop, re-accumulate, and expand again.
Focality
Without coordinating explicitly, participants converge on the same reference points: previous highs and lows, session opens and closes, round numbers, the levels popular indicators draw. This is not a conspiracy. It is a well-studied feature of how people coordinate when they cannot talk to each other — and it is why liquidity accumulates at the levels everyone is already looking at.
Cyclicity
Order flow is not a smooth stream. It is rhythmic. Trading sessions, reporting schedules, options expirations, fund rebalancing calendars — the temporal structure of human economic activity imprints itself on the market. Action concentrates at opens and closes not because price "wants" to move there, but because that is where order flow is maximal for institutional reasons.