The Assumption Crucible® Method™ — Assumption Crucible®

Founder-side due diligence

The Assumption Crucible® Method.

Four sequential phases. Each one produces what the next phase cannot proceed without.

Decision question locked

Framing

Test plan locked

Design

Results against the question

Testing

Go / no-go with conditions

Verdict

Grounded in decision science and cognitive bias research. Not because founders are irrational but because they are systematically biased toward the assumptions that carried them this far. The beliefs that survived the pitch deck feel like facts inside the company. They are not facts until they have survived contact with regulated market buyers, enterprise procurement, and institutional investors.

Why existing approaches fall short.

Internal strategy sessions surface the assumptions everyone already agrees on. Advisors work from the information you give them. Investors find the gaps after you have committed the runway. None of these is designed to find the assumptions you do not know you are making.

The cognitive bias mechanism.

Confirmation bias makes you seek evidence that validates what you already believe.

Every customer conversation that goes well reinforces the assumptions underneath it. The conversations that would prove you wrong never get scheduled because you are too busy running the ones that confirm what you already think.

Commitment bias makes you double down on decisions already made rather than question the assumptions underneath them. The further along you are, the harder it becomes to see which beliefs are load-bearing and which are comfortable fictions.

Both biases are stronger, not weaker, in founders who are intelligent, experienced, and moving fast. The Assumption Crucible Method® is specifically designed to surface what both biases hide.

The four phases.

The Assumption Crucible® Engagement from first call to decision memo.

Framing.

Map every assumption underneath the commitment you are facing across all thirteen Assumption Debt® categories. Agree the testing plan before week two begins.

Design.

Set success criteria for each load-bearing assumption. Establish what good evidence looks like so results cannot be argued with.

Testing.

Ten to fifteen structured conversations with the people who hold real evidence. Buyers. Procurement contacts. Compliance leads. Investors. Competitors’ customers.

Verdict.

A written decision memo with a clear recommendation. Not a slide deck. Not a list of options. A decision, with the evidence that supports it.

Total founder time commitment across four weeks is manageable. David runs all stakeholder conversations.

The four-week Engagement is the full application of the method. The Event Audit applies the same thinking in a focused two-session format within one week. Full detail, pricing, and structure for both are on the Engagements page.

See the engagements

What this demands from you.

Stakeholder conversations in the Assumption Crucible® Engagement are conducted with contacts the founder introduces directly. You control who we speak to. Every conversation happens with your knowledge and your introduction. The methodology does not involve cold outreach to your pipeline, your investors, or your enterprise prospects. What it does is structure those conversations so they surface the evidence you need rather than the validation you were already expecting. Where introductions are not possible for sensitive relationships, sector specialists and former procurement leads with equivalent pattern evidence are used instead.

Stakeholder conversations happen through your introductions only. You control who we speak to, and every conversation happens with your knowledge. No cold outreach to your pipeline, your investors, or your prospects. We structure those conversations to surface the evidence you need, not the validation you expected. Where an introduction is not possible for a sensitive relationship, we use sector specialists and former procurement leads with equivalent pattern evidence instead.

Full access to your thinking, not the polished version. Real conversations with your team, your customers, and your prospects, not the version you tell investors. A genuine willingness to change your mind if the evidence points that way. The Assumption Crucible Method® only works when both sides are fully in.

The method only works when both sides are fully in. That means full access to your thinking, not the polished version. Real conversations with your team, customers, and prospects, not the story you tell investors. And a genuine willingness to change your mind if the evidence points that way.

What this is not.

Not consultancy. You are not buying ongoing access to opinions.

Not coaching. You are not working on mindset or leadership.

Not advisory. You are not getting a board member who attends monthly calls.

Not consultancy. You are not buying ongoing access to opinions.

Not coaching. You are not working on mindset or leadership.

Not advisory. You are not getting a board member who attends monthly calls.

How is the Assumption Crucible Method® different from a strategy review?

How many stakeholder conversations happen in the full engagement?

What is the deliverable at the end of the engagement?

How long does the Audit take?

Can I do the Audit without proceeding to the full engagement?

What if I disagree with the findings?

Start a qualification call

Not ready for that yet? The What If tool shows you your own exposure in two minutes.

Try the What If tool →