What is your first customer paying for?
Turn ideas into testable assumptions. Talk to real customers. Take behaviour seriously and learn from a no.
Book 03 · German edition
Why starting a company is easier today and what successful founders still have to do themselves. For founders, small teams and people who want to build something.
Published in German · PDF · foreword and the complete first chapter

A prototype, a market analysis, a campaign: much of it is faster today and possible with smaller teams. Whether a viable company comes out of it is decided elsewhere.
Turn ideas into testable assumptions. Talk to real customers. Take behaviour seriously and learn from a no.
AI delivers options. You decide about people, capital, commitments and the next step.
Think price, product and growth together. Shape culture and brand before speed multiplies the wrong assumptions.
You describe what you are working on. I tell you what I would look at first — and whether I am the right person for it. If I am not, I will say so.
Video · 25 minutes · free. You pick the slot — no callback loop.