Uncover Hidden Assumptions

I'm building [product or solution] for [target audience] to help them [achieve goal or solve problem] using [unique approach or mechanism].

I need you to challenge every assumption I'm making without realizing it. Identify up to 10 unvalidated beliefs I'm treating as facts, across these areas:

- How users will actually behave and what motivates them
- Whether the market is as large and ready as I think
- How competitors will respond
- Whether the tech works the way I'm assuming
- Whether the business model will generate real revenue

For each assumption, tell me: why it's still just an assumption, and the fastest way to test whether it's true.