Receipts · Episode 0
The Money Advice That Keeps You Poor
Every number spoken in the episode, the assumption it rests on, and the arithmetic that produced it. If something here is wrong, we would rather fix it than defend it — tell us.
The assumptions
These are the inputs. They are declared once, in one file, and every figure below and every chart in the episode is computed from them.
- Big-bank savings APY: 0.4% — 0.40% ~ FDIC national average; megabanks pay 0.01-0.02% (we are generous to them)
- High-yield savings APY: 4% — A genuine high-yield account, not a promotional teaser rate.
- Inflation: 3% — long-term modeling assumption, not current CPI
- Index return, after inflation: 7% — Long-run average. Not a forecast, and not what any single decade does.
- Starting balance: $2,000 — The example account the episode follows throughout.
- Price of a coffee: $5.00 — One a month. Pinned to this value everywhere the Coffee Line appears.
- Essentials, per month: $3,000 — Single renter. The subset you cannot stop paying.
- Saving capacity, per month: $100 — A stated budget assumption, not a claim about any particular person.
- Example card balance: $3,000 — Carried at 24% APR.
- Safe withdrawal rate: 4% — Applied to the invested pot only.
What the savings account does
- $100 kept for a year at 0.4%, with inflation at 3%, buys what $97.48 buys today.
- On $2,000, that is $50 of purchasing power a year — $4.21 a month.
- On $10,000: $252 a year. The loss scales with the balance, which is why saving harder does not solve it.
The Coffee Line
Defined as the balance at which a year's interest pays for one $5.00 coffee a month — that is, $60 of interest a year.
- At 0.4%: $60 ÷ 0.4% = $15,000
- At 4%: $60 ÷ 4% = $1,500
Moving $2,000 from 0.4% to 4% takes year-one interest from $8 to $80 — an increase of $72 a year, or $6 a month. Real, worth doing, and not a solution to anything on its own. Run it on your own balance.
Note on registers: the interest figures here are nominal. Where the episode shows a balance curve falling, that curve is after inflation. The two are labelled apart on screen for exactly this reason — mixing them is the most common way this argument gets made dishonestly.
The Hurdle Rule
- $3,000 at 24% APR costs $60 a month (2% monthly).
- A sustained 10% a month compounds to 3.14× a year. Stated to price the claim, not to dismiss it.
The Permission Clock
Targets are multiples of $3,000 a month in essentials: $9,000 for three months, $18,000 for six. Starting from $2,000.
- Saving $50 a month: 11 years and 8 months to the three-month gate, 26 years and 8 months to the six-month gate. (With big-bank interest included: 11.3 and 25.1 years. The episode shows the contributions-only figure and calls the interest a rounding error — this is the proof that it is one.)
- Saving $100 a month: 5 years and 10 months to the three-month gate, 13 years and 4 months to the six-month gate. (With big-bank interest included: 5.8 and 12.9 years. The episode shows the contributions-only figure and calls the interest a rounding error — this is the proof that it is one.)
- Saving $200 a month: 2 years and 11 months to the three-month gate, 6 years and 8 months to the six-month gate. (With big-bank interest included: 2.9 and 6.6 years. The episode shows the contributions-only figure and calls the interest a rounding error — this is the proof that it is one.)
Following the advice exactly at $100 a month from age 25: the three-month buffer lands at 31, the six-month gate at 38, leaving 26.7 years to invest before 65. At 7% after inflation that reaches $90,005, which at 4% is $3,600 a year. Run it on your numbers.
Cited figures
- Median liquid savings, US adults under 35: $5,400; the average is $20,540. Source: Experian, transaction accounts, under-35. The gap between those two numbers is why the episode uses the median.
- Median US home in 1950: $7,400 against a median income of $3,300 — a ratio of 2.2. Source: Census historical series (methodology page).
What this episode does not claim
- It does not claim saving is pointless. It claims a savings account is storage, and that the advice presents storage as growth.
- It does not claim 7% is guaranteed. It is a long-run average used consistently on both sides of every comparison.
- It does not recommend skipping an accessible buffer. Every debt figure in the episode carries the one-month caveat, and so does every debt page here.
This is the companion page to the episode. The calculators are at /tools.