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Notes on automated trading.
How strategies actually get validated, why discipline scales worse than software, and what an honest backtest report looks like — without the hype.
Automation6 min read·
Why automated trading beats discretion — and the two times it doesn't
Discipline scales worse than software. Here's what an algorithm actually does for you, and the narrow set of cases where a human still has the edge.
Methodology7 min read·
Walk-forward validation, explained without math
If a strategy looks great on the past but tanks on next month's data, it was overfit. Walk-forward is the simple test that catches this — here's the intuition.
Risk5 min read·
Five signs a strategy is overfit (and one that says it isn't)
An overfit strategy is one that learned the noise of the past, not the signal. Here are the tells you can read off any backtest report in 60 seconds.
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