Notes for founders testing an idea: how to frame the question, who to interview, and what to do with the answers.
After years of chasing customers to interview across consulting, founding and investing, I stopped accepting that research has to be slow and expensive. This is the story of Cast, and of the idea at its heart.
April 5, 2026 · 9 min read
The most common question I get about Cast is a fair one: why not just open a chat assistant and ask it to pretend? Here is what a single chat cannot do, and why the process matters more than the prompt.
June 21, 2026 · 6 min read
Most startups don’t die from bad code. They die from building something nobody needed. Here is what the data says, and why speed of learning wins.
May 8, 2026 · 7 min read
