First Principles: Thinking from the Ground Up
Signature Course No. 502 — A Signature AI Socratic Coaching Course.
No experience needed — your coach starts where you are.
A New Kind of Learning
Socratic coaching, delivered by an agentic AI coach.
Not a course you watch. An AI coach you work with.
The Lighthouse Coach begins by discovering how you think about the subject, teaches what is missing, and gives you realistic practice before asking you to prove that you can use it. You may test out of concepts you already understand, while capstones turn the learning into a practical plan, decision, conversation, or other real-world result.
The curriculum is deliberately authored; the AI delivers it through coaching. It is not an AI randomly generating lessons.
A coach that teaches by asking — not by lecturing
The Lighthouse Coach is an AI Socratic coach built on Cognosco Learning's First Principles: Thinking from the Ground Up course, in the Personal Effectiveness & Well-Being category. It does not play videos at you. It holds a conversation: it asks you a question, listens to your answer, names the misconception it hears, affirms what you got right, and asks the next question — the way a great coach works in the room.
Most answers you are handed at work were not derived. They were inherited. The price is what the market charges. The process runs the way it runs because it ran that way last year. The plan is a copy of a competitor's plan with the names changed. This course teaches the other way down and back up: refuse the inherited answer, break the problem down to the things you can verify are true — the materials, the physics, the arithmetic, the constraints no decision of yours can repeal — and rebuild an answer from only what survived.
It starts with the two ways of reasoning. Analogy speaks in the language of precedent — the going rate, industry standard, last time. First principles speaks in the language of composition — what is it made of, what does that cost, what rule says so, and is the rule physics, law, or habit? You will learn to tell the two apart in your own thinking and in the claims other people bring you, and to ask the question the whole course is built on: how much of this answer is ground, and how much is inheritance?
It works in two movements. First, Module 1 — Down: Getting to the Ground — work through Concepts 1–9, finishing with The Priced Rebuild; then, Module 2 — Up: Rebuilding, and Knowing When Not To — work through Concepts 10–18, finishing with The Machine Decision.
Both capstones produce real artifacts — the descent half of a Ground-Up Brief on Fernholt Cabinet Works' standard kitchen job: the named problem, the sorted assumption list, the graded decomposition, and the floor the tested parts establish beneath the inherited $18,400 quote; and a complete Ground-Up Brief on a capital decision several times the size — the CNC machine decision — with the rebuild, the gap account, and the verification plan, defended in writing.
The honesty standard is part of the course. The method's sources are named as what they are — Aristotle's first principle, the modern engineering practice described in Elon Musk's own interviews, and the consulting world's MECE discipline are cousins, not one method, and the course's six-move Ground-Up Method is labeled as its own synthesis. And the course submits to its own arithmetic: its central rebuild is corrected in the open, in a later concept, when the confrontation finds what it missed.
The course is self-paced and always on — roughly 30 minutes per concept, about 9 hours in full, taken in as many sittings as you like. You can type your answers, or talk out loud: the Voice Coach speaks its questions and listens to your spoken replies. Learners who already know the material can test out concept by concept.
First Principles: Thinking from the Ground Up is part of The Lighthouse Signature Series — the online counterpart to the one-day, in-person learning Cognosco Learning has delivered since 2002.
Course Facts
One full concept, coached end to end — free: verify your email and we’ll send you a link to start.
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Diagnose → Learn & Practice → Prove → Capstone
Every learner moves through the same discipline a Cognosco instructor would insist on in the room.
Diagnose
The Coach starts where the course starts: with the last answer you accepted. Think of the last significant price, plan, or decision you accepted at work and say which way produced it — analogy or first principles — and what tells you so; when a colleague defends an answer with “that's the going rate,” say what you usually do next, and what that habit costs or saves you; name one answer in your working life you suspect is mostly inheritance, and what checking it would require. Every concept opens with three questions that locate where you actually stand, and your answers shape how deeply the Coach works the concept with you. Everyone begins with Module 1 — no skipping the foundations you only think you have.
Learn & Practice
Work each concept in conversation with the Coach — spoken or written — then practice it against realistic situations until it holds up.
Prove
Every concept ends in proof: answer the check cold and demonstrate the skill. Know it already? Test out and take credit immediately.
Capstone
Finish with two capstones — The Priced Rebuild for Module 1 and The Machine Decision for Module 2 — that pull the whole course together, and earn the certificate.
What You'll Learn
Down before up — no answer is rebuilt before it has been taken apart. Every concept in Module 2 leans on a descent performed in Module 1, and both capstones refuse a conclusion whose fundamentals were never tested. And the ground has grades: bedrock, firm, or merely believed — a believed thing enters a rebuild only when it is flagged as believed.
Module 1 performs the descent. Two Ways to Reason; What a First Principle Is; Name the Problem; Surface Every Assumption; Sort the Assumptions; Break It Down; MECE and the Cousin Discipline; Test Each Fundamental; and Stop at the Ground — worked throughout on Fernholt Cabinet Works, a 24-person custom cabinet shop, and its standard kitchen job, whose full cost picture is stated once and used for every figure in the course.
Module 2 performs the ascent — and teaches the judgment. Reason Up; The Cost Case in Full; The Everyday Rebuild; Confront the Incumbent Answer; Verify Against Reality; When Analogy Is the Right Tool; Where First Principles Fails; The Hypothesis-Driven Cousin; and The Ground-Up Standard — ending with the choice itself: dig where the stakes, the time, and the knowability of the ground justify the digging, and be able to say, in one sentence, why you dug or why you didn't.
And it holds its boundary throughout. The consulting disciplines — MECE decomposition and hypothesis-driven issue trees — are taught in two concepts as the cousin disciplines they are, inside a different method; the engagement craft itself, root-cause tools, decision matrices, and argument analysis live in their own neighboring courses. This course stakes its ground on what the descent alone teaches: telling resemblance from composition, pricing the parts, grading the ground, and rebuilding only from what survived.
What you will learn
- Tell analogy reasoning and first-principles reasoning apart — in your own thinking, and in the claims other people bring you
- Surface the assumptions a conventional answer rests on, and sort the load-bearing ones from the decorative ones
- Break a price, a plan, or a claim down into parts that can each be checked
- Test each fundamental, and grade the ground you are standing on — bedrock, firm, or merely believed
- Rebuild an answer from only what survived testing, and explain the gap between your rebuild and the going answer
- Verify a rebuild against reality, with a test designed in advance to be able to fail
- Choose deliberately between first principles and analogy — and defend the choice on stakes, time, and what can actually be known
Everything in the course
- All 18 concepts of First Principles: Thinking from the Ground Up, in 2 modules
- A starting-point check first — the Coach finds where you actually stand before teaching
- Learn, Practice, Prove for every concept — no passive video watching
- A test-out on every concept: prove you know it and move on
- The Voice Coach: talk with the Coach out loud — it speaks, listens, and replies
- A personal Learner Record of your work across the course
- Two capstone exercises: The Priced Rebuild and The Machine Decision
- A printable session summary whenever you pause
- The Lighthouse Coach completion certificate (Signature Series)
- Your progress is saved as you go — stop anytime, resume where you left off
Built for people who make expensive decisions
Managers and team leads — who approve prices, plans, and headcounts built by analogy, and who need to know which inherited assumption in the pile is doing the damage; and owners, founders, and operators who compete against incumbents whose prices and processes embed costs they themselves do not have, and who suspect the gap is real but cannot yet prove it.
Analysts and engineers — whose estimates and designs are challenged with “that's not how it's done,” and who need a disciplined way to answer: what is this actually made of?
Anyone who makes expensive decisions — at work or at home — and wants a repeatable procedure for getting underneath a received answer before committing to it. This course assumes no philosophy, no engineering degree, and no consulting background; it assumes arithmetic you can do with a pencil, and a willingness to have your own favorite answer taken apart.
Prefer to learn live and in person? The same material anchors Cognosco's one-day programs — browse the in-person catalog.
Start with Two Ways to Reason
$195 — introductory price. One payment. No subscription, no password to manage.
Here is exactly what happens when you enroll:
- Pay securely with Stripe — you are taken straight into the course
- Create your learner profile and begin the Module 1 starting-point check
- Save the access key you are given — it restores your enrollment on any device
- Learn at your pace; your progress is stored in your browser on your device
For the full voice experience, use Chrome and allow the microphone when asked. Typing your answers works everywhere, all the time. Questions before you enroll? Email hello@cognoscolearning.com.
Before you enroll
What is a Socratic coaching session?
A conversation, not a video. Your coach asks a question; you answer — out loud by voice, or by typing — and the coach responds to what you said: naming the misconception it hears, affirming what you got right, and asking the next question. You advance only when you have mastered each concept, so a finished course means the learning held.
How long does it take — and how long do I have?
About 30 minutes per concept. Learn in sittings of any length; your progress is saved as you go. You have a full year from purchase to finish, and you can revisit and retake within that year.
What does the certificate verify?
That you completed every concept and both capstones of this course. Anyone can confirm a Cognosco certificate online — enter its certificate ID on our verification page.
What if it isn't for me — what are the refunds?
If you have not started, cancel for a full refund within seven days of purchase. Once you have started, there is no cash refund — stop before finishing and we credit the full amount you paid toward any other course in the library (credit valid one year from your original purchase). Once you complete the course, no refund or credit applies.
More Signature Courses are coming
First Principles: Thinking from the Ground Up is Signature Course No. 502. Leave your email and we'll send you news of future Signature Courses and Lighthouse updates as they are announced — nothing else.