Day Lila

Courses

Every course teaches the system behind one subject, from the ground up.

courses
13
courses
lessons
184
lessons
subjects
7
subjects
a lesson
5 min
a lesson
no account
Free
no account

World News

Beginner-friendly

How a story becomes news

Work out why you heard about today's stories, and name the ones you never will.

The chapters

  1. 1What gets noticed4 lessons
  2. 2How it gets made4 lessons
  3. 3What reaches you4 lessons
12 lessons · about 65 min Start

Finance News

Beginner-friendly

Compliance: how a rule gets followed

Work out where a rule comes from, how a company turns it into something a hand does, which rules every organisation meets, and what happens when one is broken.

The chapters

  1. 1Where a rule comes from4 lessons
  2. 2How a company builds it4 lessons
  3. 3The rules everyone meets4 lessons
  4. 4When it goes wrong3 lessons
15 lessons · about 69 min Start

Information Technology

Beginner-friendly

How the feed decides what you see

Work out who pays for a free app, how every post is scored for you, why the feed narrows, and who holds the dial.

The chapters

  1. 1Free, and paid for3 lessons
  2. 2The ranking machine4 lessons
  3. 3What rises3 lessons
  4. 4The hands on the dial3 lessons
13 lessons · about 59 min Start

Information Technology

Beginner-friendly

AI ethics: how a machine learns to decide

An AI ethics course taught as mechanism: how a computer copies a pattern from the past, what rides along in the examples, what is new when a machine makes the mistake, and who answers for it.

The chapters

  1. 1What a machine learns3 lessons
  2. 2What rides along in the data4 lessons
  3. 3What is new about a machine4 lessons
  4. 4Who answers for it4 lessons
15 lessons · about 74 min Start

Mind & Body

Beginner-friendly

How a workplace stays safe

Work out what a hazard is and what a risk is, how a risk is made smaller, where the harm at work really comes from, and why a disaster is never one mistake.

The chapters

  1. 1Why work hurts people3 lessons
  2. 2How the risk gets smaller4 lessons
  3. 3The hazards on the floor5 lessons
  4. 4The harm that takes years3 lessons
15 lessons · about 68 min Start

Mind & Body

Beginner-friendly

How a person bounces back

Trace what a silence does to a mind, what an alarm does to a body, why another person's envy is about their own place, and how long a body takes to come back round.

The chapters

  1. 1A silence becomes a storm4 lessons
  2. 2The other side of the silence4 lessons
  3. 3The body keeps its own clock4 lessons
  4. 4The whole circle3 lessons
15 lessons · about 68 min Start

Mind & Body

Beginner-friendly

How a mind decides what is true

Trace where a belief comes from, what a count can hide, what makes a reason reach its claim, and how a belief with a size moves when a clue arrives.

The chapters

  1. 1Where a belief comes from4 lessons
  2. 2What a count can hide4 lessons
  3. 3The shape of a reason4 lessons
  4. 4Moving the number3 lessons
15 lessons · about 72 min Start

Mind & Body · Information Technology

Beginner-friendly

Peace of mind: how attention is taken, and how it is kept

Work out what pulls at a mind all day, what a shown self costs to keep up, what grows in the gap between a feeling and an act, and what a quiet mind can do and is joined to.

The chapters

  1. 1What pulls at a mind4 lessons
  2. 2The shown self and the lived one4 lessons
  3. 3The gap, the word and the line4 lessons
  4. 4Quiet, and the whole3 lessons
15 lessons · about 69 min Start

Climate & Energy

Beginner-friendly

How the planet holds its heat

Work out where the extra heat comes from, where it goes, and why swapping the energy behind it is slow.

The chapters

  1. 1The blanket4 lessons
  2. 2What one degree does4 lessons
  3. 3Where the energy comes from4 lessons
  4. 4Changing it3 lessons
15 lessons · about 71 min Start

Climate & Energy

Beginner-friendly

Sustainability: what can keep going

Work out whether a thing is being used faster than it comes back, who pays when a cost lands next door, how a footprint is counted, and who checks the claim.

The chapters

  1. 1What sustainable means4 lessons
  2. 2Who pays4 lessons
  3. 3How a footprint is counted4 lessons
  4. 4Who checks3 lessons
15 lessons · about 71 min Start

Personal Money

Beginner-friendly

How money loses value

Work out what a sum of money is really worth — this year, in ten, and in forty.

The chapters

  1. 1What a price is4 lessons
  2. 2Money and time4 lessons
  3. 3The system behind it4 lessons
12 lessons · about 64 min Start

Gaming

Beginner-friendly

How a free game makes its money

Work out who pays for a free game, why a chest sells a chance and not a prize, how a streak and an energy bar bring you back, and what the game counts.

The chapters

  1. 1Free to play, paid by a few3 lessons
  2. 2The chest with a chance inside3 lessons
  3. 3Why you come back every day3 lessons
  4. 4The other side of the screen3 lessons
12 lessons · about 55 min Start

Gaming

Beginner-friendly

Canon and continuity: why big stories tangle

Work out what canon is and who decides it, why a story told by many hands over decades piles up promises it cannot all keep, the three ways a promise gets broken, and the four ways a franchise untangles itself.

The chapters

  1. 1What a long story is made of4 lessons
  2. 2Why it tangles4 lessons
  3. 3The four fixes4 lessons
  4. 4Keeping it straight3 lessons
15 lessons · about 68 min Start