Money & Personal Finance
Compounding, debt, risk, fees, and decisions that hold for decades
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Compounding Needs Time
Compound growth is driven far more by how long it runs than by the rate it runs at.
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An Emergency Fund Buys Options
Cash held against a shock exists to stop you making forced decisions, not to earn a return.
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Not All Debt Is Equal
Debt differs by interest rate, by whether it is secured, and by whether it funds something that grows.
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Fees Compound Too
An annual percentage fee is charged on the whole balance every year, so its effect grows with the pot.
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Diversification Is Humility
Spreading holdings is an admission that you cannot reliably tell in advance which will do well.
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Lifestyle Creep
Spending tends to expand to match income, so a rise can leave the gap between earning and saving unchanged.
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Insurance Is for Catastrophe
Insurance is worth buying for losses you could not absorb, and usually poor value for ones you could.
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Where You Hold It Matters
The same investment can produce different net returns depending on the type of account it sits in, because of how each is taxed.
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Time In, Not Timing
Long-run returns are concentrated in a small number of days, and missing them costs more than avoiding the worst ones gains.
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Net Worth, Not Income
Income is a flow and net worth is what remains after everything owed, and only one of them measures your position.
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Inflation Erodes Cash
Cash keeps its number and loses purchasing power as prices rise, so holding it has a real cost.
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Automate the Decision
A decision made once and automated is not exposed to mood, markets or competing demands every month.