How Long Does It Really Take to Double Your Money?

The TL;DR The core commandments of personal finance are almost embarrassingly simple: Increase your earning power (expand the top of the funnel). Spend less than you earn (live below your means). Invest the difference as soon as you have it (deploy money the moment you have it to invest; never hoard cash on the sidelines trying to time the market). Diversify ruthlessly (the only free lunch in finance; tame volatility drag). Stay liquid (maintain an emergency buffer so market dips never force you to sell). Seek asymmetric bets (cap your downside, but leave room for explosive positive jumps). Wait (give compound interest the runway to work its exponential magic). That’s the core canon—seven principles that cover nearly everything you need to know. Everything else is mostly commentary. ...

October 12, 2026 · 25 min · Soma Mbadiwe