| 📈 Compound interest |
Compounding · Interest on interest |
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| ⌛ Time value of money |
TVM · Present value |
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| ⚖️ Opportunity cost |
Trade-off cost · Foregone return |
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| 🔢 Rule of 72 |
Doubling rule · Rule of 69 |
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| 🌡️ Nominal vs real returns |
Inflation-adjusted · Real yield |
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| 🎛️ Contributions vs rate vs time |
Savings rate leverage · Three levers |
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| 📉 Fee drag |
Expense ratio drag · Cost of costs |
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| 🧾 Tax drag |
Taxable drag · After-tax return |
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| ♻️ Reinvestment |
Dividend reinvestment · DRIP |
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| 📅 Dollar-cost averaging |
DCA · Pounds-cost averaging |
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| 🌱 Early start advantage |
Time premium · Youth compounding |
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| 🏃 Late catch-up saving |
Catch-up contributions · Compressed horizon |
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| 🎢 Sequence of returns risk |
Sequence risk · Retirement path risk |
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| 🏛️ Multi-decade & legacy horizons |
Generational compounding · Perpetual horizon |
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| 🏦 Cash & high-yield savings |
HYSA · Cash reserves |
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| 🧱 Bonds as ballast |
Fixed income ballast · Duration risk |
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| 🌍 Broad equity index |
Total market index · Passive equities |
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| 🤝 Employer match |
Matching contributions · Free contribution |
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| 🔁 Consistency as a habit |
Savings consistency · Auto-pilot investing |
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| 🛒 Lifestyle creep |
Lifestyle inflation · Spend-up |
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| 😱 Panic selling |
Drawdown selling · Behaviour gap |
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| 💵 Cash renaissance (2020s) |
Higher-for-longer cash · Post-ZIRP cash |
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| 🔥 FIRE variants |
Financial independence · Lean / Fat FIRE |
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| 📱 Auto-invest apps |
Robo-advisors · Round-up investing |
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