Predictions are noisy; discipline is durable. A 55 percent model with strict 2 percent sizing and a regime filter beats a 65 percent model traded on ego. The filter is the system; the predictor is a junior analyst.
Journal every trade, review weekly, and never size by lots. Survival compounds the edge. Most retail lose not from bad models but from abandoning discipline after three losses.
Q: What matters more: edge or discipline?
A: Discipline and sizing outlast any predictive edge.
Q: How to build discipline?
A: Journal, weekly review, 2 percent sizing, never by lots.
Q: Why do retail lose?
A: They abandon discipline after a few losses, not from bad models.
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By Shakti Tiwari · Options AI research pillar. NISM XII certified. Educational only, not investment advice; verify before acting.