Unit 3 · Level 3 · The long-game identity
Cohorts of 100
A casino doesn't panic when a gambler wins a hand. It knows the edge shows up over thousands of hands, not one. Traders who survive learn to think the same way: a single trade is one coin flip from a weighted coin. Meaningless alone, decisive in bulk. From today, stop asking "did this trade win?" and start asking "what do my last 100 trades say?"
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What you get asked
Why does a single trade's outcome say almost nothing about your skill?
A 55%-edge coin still lands tails 45% of the time. Judging yourself per flip means celebrating luck and punishing good decisions. Cohorts of 100 filter the noise.
Your system wins 40% of the time. Average win €300, average loss €100. Over a cohort of 100 trades, what's the expected net profit in euros?
40 wins × €300 = €12,000; 60 losses × €100 = €6,000; net +€6,000. A system that loses MOST of the time prints money, something you can only see at cohort scale.
Losing 6 trades in a row with a 40% win rate is not a broken system. It's ordinary ___.
With a 60% loss rate, streaks of six losses are routine over 100 trades. The Trading course's expectancy math predicts them; the long-game identity expects them.
Match the question to the thinking style behind it
The shift is from outcomes to distributions. Single losses stop being emergencies and start being data points, which is exactly what kills tilt at the root.
What changes emotionally once you truly think in cohorts of 100?
The casino doesn't cry over one hand and you don't have to either. This one idea quietly defuses the spiral from Unit 1: a loss that's just a data point can't demand revenge. 🐜
The rest of this unit
Think in hundreds of trades, detach from the P&L, and make peace with doing nothing.