Compound Interest Explained in 14 minutes!

99% of Warren Buffett's wealth was built after age 50. Not because he got smarter. Because of one number, and most people never learn it. In this video, I break down compound interest the way school never did — with real numbers, real timelines, and a story about two friends that will completely change how you think about time and money. Sarah invested for 10 years and stopped. Mike invested for 30 years straight and never missed a month. Mike put in 3x more money. Sarah still won — by $130,000. The math is not a trick. It's just what happens when you start early and leave it alone. By the end of this video you'll understand: → Why time is worth more than income in the compound interest equation → The exact cost of waiting one decade ($955,000) → How the same force building your wealth is quietly destroying millions through credit card debt → The 4-step compound wealth framework anyone can start this weekend ⏱ CHAPTERS 00:00 — The Warren Buffett Stat Nobody Talks About 01:05 — What Compound Interest Actually Is 02:10 — Simple vs Compound: Side By Side 03:00 — The Three Levers (And The One That Actually Matters) 03:37 — Sarah vs Mike: The Two Friends Experiment 06:00 — Why Time Beats Money Every Time 08:15 — The Dark Side: When Compounding Works Against You 10:05 — The 4-Step Compound Wealth Blueprint 12:35 — Your 3-Step Weekend Action Plan 13:40 — Recap + The One Thing To Do Before Monday 📌 REFERENCED IN THIS VIDEO → S&P 500 historical average return: ~8–10% annually → Roth IRA 2026 contribution limit: $7,000/year → Average U.S. credit card APR (2026): ~24% → VOO / VTI / FXAIX — expense ratios under 0.10% 🔔 NEW VIDEOS EVERY WEEK Subscribe so you don't miss the next breakdown! Broke is a habit. Wealth is a decision. Marcus Finance — Personal finance and investing for people who are done waiting and want wealth building and financial independence. #CompoundInterest #PersonalFinance #MarcusFinance #InvestingForBeginners #RothIRA #WealthBuilding #IndexFunds #Fina

Added 14 May 2026