Myelin · Decision Intelligence
S-25 cohort open
The world's most immersive way to learn how to think.
You are dropped into situations with no right answer and no instructions. You decide, the world reacts, and the judgment you build is the thing we measure.
Startup Survival
Q3 of 4 · Seed stage
3:00
Runway is 5.8 months. Your lead engineer resigned on Monday and a competitor undercut you by 40% on Tuesday.
- 1Cut burn to nine months of runway
- 2Match their price on the top ten accounts
- 3Hold price and spend into the roadmap
- 0
- Videos to watch
- 22
- Spend lines a quarter
- 7
- Cognitive dimensions
- 4Q
- Inside 30 minutes
Your brain hasn't stopped being brilliant.
It's just never been given the chance to be.
Myelin makes a nerve fire faster by leaving parts of it bare. The signal doesn't travel the line — it leaps the gaps. Take away the gaps and it slows down. That's what we build for.
Ranvier's nodes — action potential propagation
LeetCode for judgment.
Every serious profession has somewhere to practise badly before it matters. Judgment under uncertainty, the skill every one of those professions is actually hiring for, is still taught with case studies and slide decks.
Myelin is the room where you get to be wrong first.
Where the practice happens
- EngineersLeetCode
- DoctorsRounds
- PilotsSimulators
- OperatorsMyelin
Judgment is the last professional skill still taught by anecdote.
One choice, six months of weather
0/5 matured
Keep scrolling · consequences mature on their own clock
Your first real decision shouldn't be your first decision.
Pilots get simulators. Surgeons get cadavers. Everyone else learns judgment on live consequences — their team's, their customers', their patients'. Myelin gives you the reps first.
Your lead engineer just resigned. Your biggest customer is renewing in nine days and asked for her by name. Your co-founder wants to counter-offer at any price.
No correct answer. The world responds either way.
Seven cognitive dimensions.
One run produces one profile. The shape is what a recruiter or a dean reads: not whether you won, but which kinds of decision you are reliably good at and which ones cost you.
Sample profile · S-25
Strategic Thinking
78See three moves ahead in fog.
Dimension
Percentile
DI Score™
One composite percentile across all seven, comparable between cohorts and readable in ten seconds.
78
Composite percentile
Pressure. Choice. Consequence.
A deterministic model decides what your numbers do. A narrative engine decides how it feels when they do it. Delayed consequences mature one to six months out, long after you have moved on.
Step 01
Pick a scenario.
Startup Survival, M&A, Crisis Comms, Turnaround. New ones every month.
- Live scenarios
- 1
- In beta
- 1
- Shipping soon
- 4
Bring Myelin to your campus.
Universities, accelerators and employers use Myelin to assess judgment on evidence rather than on interview performance. Pilots start with a single cohort.
Included
Cohort dashboards
Every run in your cohort, ranked and filterable
Skill gap reports
Which dimensions a class is weakest on, by term
Proctored mode
Locked sessions with a verified identity per seat
Request early access
Talk to the team.
Tell us what you're trying to do — a classroom pilot, a procurement question, or something else entirely. Submitting opens Gmail with your details pre-filled and ready to send.
What happens next
You write the request
Pick a request type, tell us who you are and what you need.
It opens in Gmail
The message opens in Gmail compose, pre-addressed to myelinworks@gmail.com with everything you entered, ready to send.
We get back to you
Expect a reply from the team with the next step for your request.

