The master list: what to teach before fifteen

This is the canonical version. It changes as my daughter grows and as I learn what actually worked, but at any point there is exactly one of these — new thinking goes in a dated post that argues for a change, and once I've made the change, this page is what gets updated. See why fifteen, and how this list works for the reasoning behind the structure itself.

Target: functionally independent by fifteen. Not eighteen. The legal age of adulthood is a compliance date, not a competence date, and I'd rather under-shoot and keep adding than plan to a deadline that lets everyone relax for the last three years.

Principles and skills, not facts. Nothing on this list is knowledge for its own sake. Every entry is something she can act on, and every entry should translate into a real decision she'll actually face — what to eat, how to treat someone who's wronged her, whether to pick up a cigarette. What she gets curious about beyond this is hers to choose; I'm not assigning trivia.

0–4#

• The golden rule, modelled before it's explained. Treat others as you would want to be treated. At this age it isn't a lesson, it's what she sees me do when I'm frustrated, tired, or dealing with someone who's rude to me.
• A daily reading habit, even before she's reading herself — being read to is what builds the appetite the skill later runs on.

5–8#

• Independent reading fluency. Not a specific book list — the bare-minimum muscle so that whatever she wants to go deep on later, self-taught, is available to her. This is the one skill that unlocks every other skill.
• Times tables to 100. Arithmetic fast enough to be invisible, so that later math is limited by the new idea, not by recomputing 7×8 every time it shows up.
• The golden rule, explained. Why it works, not just that it's the rule — the mechanism (people mostly treat you the way you treat them, over enough time) rather than the platitude.

9–11#

• Basic cooking. Enough to feed herself a real meal without help — not recipes memorised, but the underlying logic of why a dish works, so she can improvise.
• Basic nutrition. What a diet needs and why, so food choices later are informed rather than inherited or accidental.
• How to learn, mechanistically: spaced repetition and neuroplasticity. That forgetting on a schedule and re-testing yourself right before you'd forget builds stronger recall than re-reading, and why — the brain strengthens connections it's forced to retrieve, not ones it passively re-sees. Taught here rather than later because it changes how she does every subject from this point forward, not just as a fact she owns.

12–15#

• Fitness as a habit, not an event. Why regular movement matters, before the version of her that has to decide this for herself without a parent reminding her shows up.
• Basic anatomy — the parts that fail first. Muscles, tendons, ligaments, and specifically posture, because bad posture compounds quietly for decades before it becomes a real problem, and the earlier the habit is right the cheaper it is to keep right.
• Why the common bad habits are bad, mechanistically. Smoking, drinking — not "these are bad for you" as an assertion, but what they actually do, stated plainly enough that avoiding them is a reasoned decision and not just obedience to a rule she'll drop the moment no one's watching.
• Measuring and improving her own heart health. What the basic numbers are (resting heart rate, blood pressure) and what actually moves them, so cardiovascular fitness is something she tracks and acts on rather than a thing that's fine until a doctor tells her otherwise at forty.
• Measuring and improving her own lung health. Same idea for breathing capacity and endurance — what it is, roughly how you'd notice it's declining, and what training actually improves it.
• Flexibility and range of motion as a maintained thing, not a fixed trait. That mobility is lost by default through disuse and kept through maintenance, same mechanism as the posture item above but for joints generally.
• Division of labour, and specialisation as the source of higher productivity. Why one person doing one thing repeatedly and trading for everything else beats everyone doing everything for themselves — the mechanism behind why she'll specialise in something rather than try to be self-sufficient, and why trade isn't a zero-sum transaction.
• Supply and demand as the thing that sets prices, not a fixed rule. That a price is where two curves cross, not an authority's decision, so that scarcity, gluts, and prices moving both ways make sense as the same mechanism rather than separate, confusing events.
• Money: the asset classes available to a regular person, and their tradeoffs. What an asset actually is (something that can generate income or appreciate, as distinct from a liability that just costs money to hold), and a working comparison of the main options she'll actually have access to — equities, gold, real estate, cash and cash-equivalents, each with its own liquidity, volatility, and behaviour under inflation.
• A share of stock is ownership in a business, not a ticker that moves. The mechanism behind index funds versus actively managed mutual funds versus picking individual stocks — what each actually is, why costs compound against you over decades, and why "beating the market by picking stocks" is a much harder game than it looks from outside it.
• Gold as an inflation hedge — and what inflation actually is. Why governments print money, what that does to the value of cash sitting still, and why gold's specific property (it can't be printed) is what makes it a hedge rather than just another commodity.
• The case for becoming an asset owner early, and keeping free cash low. Why compounding rewards time in the market more than timing it, and why idle cash is a cost (inflation erodes it) not a safe default — this is the synthesis of the items above into an actual decision: what to do with money as soon as she has any.
• Paul Graham's hierarchy of disagreement, and how to argue well. The difference between refuting the central point and refuting tone, name-calling, or a weak version of the argument — so that disagreeing with someone is a skill aimed at being right, not at winning.
• Empathy as a set of learnable techniques, not just a trait. Concretely: the negotiation and listening techniques from Never Split the Difference (Chris Voss) — labeling emotions, mirroring, calibrated questions — as tools for understanding what someone actually wants, not manipulation tricks.
• Basic social skills: how to be genuinely likable. How to Win Friends and Influence People (Dale Carnegie) as the starting text — the mechanism being that people respond to genuine interest and being made to feel important, not to charisma as an innate trait.
• Happiness tracks the gap between expectation and reality, not the reality alone. That deliberately keeping expectations calibrated (not lowered as pessimism, but set accurately) is one of the few levers she'll have direct control over, versus circumstances she often won't — a mechanism, not a platitude about gratitude.

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Learning milestones and books. Each item above should eventually be tied to the specific book, source, or teaching moment that landed it — not just the milestone age. I've started that for the communication cluster (Paul Graham's disagreement hierarchy, Never Split the Difference, How to Win Friends and Influence People); the rest of the list still needs its sources attached. More books to come as I identify them.

Open, not yet placed: items I know belong somewhere on this list but haven't decided which milestone they belong to — how to recognise when someone is taking advantage of her, basic self-defence, how to disagree with someone without ending the relationship (distinct from arguing well — this is about repair afterward).