Business quality
Identify earning power, unit economics, customer stickiness, and the limits of the circle of competence.
AI Berkshire Space
Four-master analysis without one-model overconfidence
Separate business quality, valuation, inversion, management, and long-term certainty before synthesis.
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Valuation sanity
Run market cap, currency, P/E, cash, and owner-earnings checks before writing a conclusion.
Contradiction log
Keep opposing master views visible so a cheap stock can still fail certainty or governance gates.
Limits and method notes
This page explains a research workflow, not an investment recommendation. Outputs should be checked against primary sources, fresh market data, filing data, and your own suitability constraints.
Full planner output requires package selection and Polar checkout verification.