DemagickedSubscribe

Write a number.

Use your mouse or trackpad

It isn’t magic. It’s 784 numbers.

784 numbers. One point.

It lands where its kind live.

2,000 real handwritten digits, each placed by a small network. Yours is circled.

Learn how ›

Season 1

Ten destinations. What we find there stays sealed.

  1. 02

    One star, many names

    SealedOut now ›

  2. 03

    A black hole

    SealedOut now ›

  3. 04

    A cluster and its catalogue

    SealedOut now ›

  4. 05

    A nova shell

    SealedOut now ›

  5. 06

    The birth of a star

    SealedOut now ›

  6. 07

    Light from a star already gone

    SealedOut now ›

  7. 08

    A galaxy against one star

    SealedOut now ›

  8. 09

    A lens of invisible mass

    SealedOut now ›

  9. 10

    Home: the blue dot

    SealedOut now ›

Learn

Linear Algebra for Machine Learning

From a single point in space to the mathematics inside every modern model.

Start free ›Volume I: every lecture and its playground ›
Lecture 4b finds x
A phone gallery of faces and pets, from Lecture 1

Lecture 115:49

Space, Distance & Similar Photos

Vectors of two and three dimensions being added, from Lecture 2

Lecture 222:00

Vectors, Span & Basis

A table of four patients and their risk scores, from Lecture 3

Lecture 3Coming soon

Matrices & Multiplication

Two feature arrows sweeping a flat sheet in a space of three patients’ scores, from Lecture 4a

Lecture 4aComing soon

Linear Equations & the Two Pictures

The four patients, the four weights found by elimination, and their risk scores, from Lecture 4b

Lecture 4bComing soon

Gaussian Elimination

Why

Everything that looks like magic is a mechanism no one has shown you yet. We take it apart, all the way down, until you could build it again.

Kumar Divya ManiMind and hand behind Demagicked. Formerly machine learning research at MIT
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