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A note before we begin: This is the second lesson in a four-week experiment. I am doing every lesson alongside you, on the same tools, with the same constraints. Some days will land cleanly. Some will lead to dead ends and need rework. We’ll figure out what works, together.
If you are catching up, here’s what came before today’s lesson:
Intro: Build Your Own Investment Idea Engine
Lesson 1: How LLMs Work, and How to Defend Against Hallucinations
We are going to spend the bootcamp interacting with AI through prompts. Today is where we build the habits that keep that interaction disciplined.
The practical goal is simple: we want the same model, on the same day, to do materially better work, with fewer silent errors, just because we gave it a better job description.
Let’s launch into our second lesson.





