Money & Value
What money actually is, how it moves, and how it's kept track of — assuming you know nothing yet.
What money actually is, how it moves between people, and how it's kept track of — the absolute ground floor of finance, taught assuming you know nothing yet.
Before compound interest, before stocks, before a single Sharpe ratio — there’s the deceptively simple question almost no one stops to ask: what is money, actually? This is the root of the whole finance ladder, and it assumes you know absolutely nothing yet — no jargon you haven’t been handed, no balance sheet you’re expected to have seen.
Here’s what you’ll walk away knowing:
- Barter & why money exists — the maddening problem of needing someone who wants your bread and sells the shoes you want, and how money fixes it.
- The bedrock vocabulary — money, payment, interest, account, balance and the rest, each defined the first time you meet it.
- How a payment really happens — who pays whom, what flows back, and why “Approved” on a card reader doesn’t yet mean the money has moved.
- Income vs. expense — following money through your own life: in, out, and what the leftover (or the shortfall) means.
- Saving vs. borrowing — what to do with a surplus, and what a shortfall costs.
- The ledger — finance’s most underrated invention: the humble running list of who has what. Your bank balance is just a line on one.
Get comfortable here and the rest of finance stops being intimidating and starts being legible. Four short lessons, then a capstone exam to prove it stuck.
In this topic
- 1 What Is Money? From Barter to Fiat Why barter fails, how money fixes it, money's three jobs (medium of exchange, store of value, unit of account), and what actually gives a $20 bill its value — from gold to fiat to crypto. 9 min
- 2 Cash & Payments: How Money Actually Moves What physical cash is, what a payment really is (payer, payee, amount), cash vs digital payments and the middle-men, settlement and finality, and where fees come from. 8 min
- 3 Income, Saving & Borrowing: Where Your Money Comes From and Goes Money in vs money out, surplus vs deficit, saving as deferred spending and borrowing as pulled-forward spending — trace the personal cash-flow loop and meet interest, the price of time. 8 min
- 4 Bank Accounts & Ledgers: Where Your Money Actually Lives Your bank balance isn't a stack of your bills in a vault — it's a claim. Learn what a ledger is, how to read debits, credits and a running balance, and the double-entry idea behind every blockchain. 9 min
- 5 Final Exam: Money & Value The graded, locked capstone exam for the Money & Value course — barter and the three functions, fiat and legal tender, payments and settlement, income vs expense, saving vs borrowing, and accounts as ledgers, all in one scored test you need 70% to pass. 15 min
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