Live cohort · autumn 2026
The Human Signal Cohort is a guided track that takes your product, station by station, through the PMF Flywheel. One live session a week, a Slack channel where you get unstuck, and every template. Small group, real feedback.
Apply for the founding cohort →How it works
90 minutes online, each mapping to one phase of the Flywheel. Teaching, then work on your case, live.
Ask questions between sessions and get feedback from Boris and your peers. You never get stuck alone.
Every assignment is applied to your real product. You leave with evidence, not just notes.
Eight weeks
Bound the market where a real, frequent problem lives, the one with the fastest learning, not the biggest.
Pick the one ideal customer who gets you to proof fastest. This choice decides what your product becomes.
Understand the problem deeply enough to earn the right to build. Behaviour and workarounds, not opinions.
Frame solution directions as testable bets, and name the riskiest assumption in each.
Sharpen the promise until it's clear why you, and not the status quo. Basics, performance, delight.
Separate genuine demand from polite interest with a real commitment: money, a slot, a paid pilot.
Build only enough to test the next assumption. Ship an artifact, get behavioural signal within 72 hours.
Turn the loop: assumption, experiment, signal, decision. Read fit, then decide where to expand next.
What's included
Founding cohort
The first cohort is limited to around 20 people so everyone gets real attention. Founding members get the lowest price it will ever be, in exchange for their feedback and a testimonial.
Founding cohort · limited seats
Regular price CHF 1'490
Apply first. We only take products that are a fit for the cohort.
Apply
Tell us a little about what you're building. We'll get back to you with the next start date and the details. No payment now.
Thanks. We'll be in touch with the start date and next steps. In the meantime, grab the free templates.
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Questions
Right after the book launches, in autumn 2026. Apply now and we'll send you the exact dates as they firm up.
Founders, product and growth people, and teams in SMEs who are actively looking for or defending product-market fit. You need a product or a concrete idea to work on.
Plan for the 90-minute live session plus two to three hours of focused work on your own case.
Every session is recorded and shared, and you can ask anything in Slack. Live is better, but you won't fall behind.
Sessions run in the language of the cohort. Tell us your preference in the application; materials come in both.