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Bring the question.

The most useful first message says what decision the analysis is for, what data exists, and when you need an answer.

What happens next

1. 01A reply within one business day, from me, not an assistant.
2. 02A 30-minute call to hear the decision, the data, and the timeline.
3. 03A written note afterwards saying whether the question is answerable and what I would propose.