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Compare · online courses

Courses are scaffolding. Datum is the building.

Online courses teach you what to know. Datum helps you prove you can do it. The difference is the distance between a completion certificate and a decision another person can inspect.

“'I completed a course on…' is a claim. 'I built this, here, on these days, and it ran' is a receipt.”

The comparison

Online courses compared with Datum
What mattersOnline coursesDatum
OutputCertificate of completionDated records of the call you made, in words you can explain
PracticeQuizzes and final projects (often ungraded)Daily problems with mentor feedback, from novice to expert
Career guidanceNone, or generic career center contentDatumly, an AI guide with receipts and two-way voice, on the work in front of you
PrivacyPlatform sees all progress, may sell aggregate dataZero-knowledge vault; platform cannot read your files
PacingSelf-paced (often means never-finished)One deliberate move a day; rest is part of the curriculum
Job to be doneKnow the material and collect a certificateMake a weekly call you can defend at work
CostRoughly $15–$200 per course; subscriptions $30–$50/moThe Table free forever; Datum Plus $12 a month or $96 a year
Signal to employers“Completed X course” · easy to state, hard to verifyA dated card holding the attempt, the revision, and what AI did

Try the outcome · no account

One Practice move → one evidence card → one Proof bullet

Courses end at a certificate. Datum ends at work you can defend.

  1. 01 · Solve today's Practice problem (no account)
  2. 02 · Enter and complete a mission · an evidence card is offered
  3. 03 · Open Proof and write one bullet from that card

When to use courses: courses are excellent for learning a new domain from zero. Use them for the first month in a lane. Then move to Datum to turn that knowledge into evidence.

When to use Datum: when you need to build proof, get coaching on your specific situation, and pace yourself through a transition without burning out.

The evidence gap

Every hour spent re-sanding language that a machine can generate is an hour spent competing in a market where the price of the good is falling to zero. Every hour spent practicing · building, solving, rehearsing, shipping something small and dated · mints an asset whose value is rising, because scarcity is moving from polish to proof.

Start building evidence

Core is free. Practice, Datumly, and Proof. One deliberate move a day.

Start free