“Uncover what the customers need”

Phase 1 is about finding the right product for the right market, before building anything substantial.
This is market discovery and early validation. The goal is to learn relevant, unconventional truths about the market, form a strong opinion about a core problem to address, and craft a compelling vision that the market validates.
At the end of Phase 1, you should have:
Core question: Is this the right product for the right market?
Entry state: Thesis + team
Exit state: Validated vision + 3 co-builders committed
No PMF signal. Full search mode. You have a thesis, not evidence. Everything is uncertain.
You learn. You become more relevant. You turn unconventional insights into a compelling problem statement and vision for a segment.