Compound interest is slow, then sudden

Why a boring contribution in MAD beats a perfect forecast you never fund.

Quick answer

Compound interest means each year's gain is calculated on the previous year's total, not the original amount — so 10,000 MAD growing at 7% a year earns on 10,700 in year two, not on 10,000, and the gap widens every year you stay invested.

Compounding is the return earning a return — a mechanical fact, not a forecast, and it's the single biggest lever a slow saver has.

The math in MAD

If 10,000 MAD grows 7% a year and you leave it, year two earns on 10,700, not on 10,000. The early years look small. The later years do the work.

Year 1: 10,000 MAD → 10,700 MAD
Year 5: 10,000 MAD → roughly 14,026 MAD
Year 15: 10,000 MAD → roughly 27,590 MAD, without adding a single dirham

The variable you actually control

The variable you control is not the forecast. It is whether this month's leftover actually reaches an asset you already understand: a Casablanca name, gold, Bitcoin, or dry powder in USDC.

Fees and skipped months break the curve faster than a slightly worse allocation.

Write the cost basis. Come back. Add the next unit. That is the whole method — no timing skill required, just a repeatable habit that survives a boring month.

WealthOS shows whether the pile you already built is up or down versus what you paid, and the plan page turns this month's leftover into a concrete monthly put toward each goal.