WEALTH · START HERE

Why Invest at All?

By Tui Alailima · 2 min read

Fair question: the last two lessons described a market that wiggles around on people's moods. Why hand your money to that?

Two reasons.

1. Cash quietly loses

Prices rise a little almost every year — that's inflation. Money sitting in a drawer (or a near-zero savings account) buys a bit less every year. It feels safe, but it's a slow leak.

2. Ownership compounds

When you own slices of businesses, your money grows two ways: the businesses grow, and your gains start earning gains of their own. That second part is compounding, and it's the entire engine of long-term wealth. Growth on top of growth doesn't add up — it snowballs.

Don't take my word for it. Play with this:

$200 a month for 30 years is $72,000 of deposits. Kept as cash, it's still exactly $72,000 — and inflation quietly shrinks what it buys. Invested at 8% a year — near the market's long-run average — it grows to roughly $272,000. Same deposits, wildly different outcome.

$200/month: your deposits kept as cash (dashed) vs. the same deposits invested at 8%/yr (red). Toggle the horizon — notice the gap explodes in the LAST ten years. That's compounding.

Look at the 30-year view. The gap between the lines isn't from saving harder — it's the same $200 a month. The gap is time. Which is why the single biggest advantage you have as a beginner isn't stock-picking skill. It's time in the market — starting early and staying in.

This is also why I don't trade. Trading risks interrupting the snowball. My whole approach is: buy broadly, keep buying, don't interrupt. The next lessons give you the vocabulary for exactly what to buy broadly.

Terms you now know

  • Inflation — prices creeping up, so idle cash buys less each year.
  • Return — what your money earns, usually shown as % per year.
  • Compounding — gains earning their own gains; the snowball.
  • Time in the market — how long you stay invested; the beginner's superpower.

Check yourself

Same $200/month, same 8% return — why does the second decade build so much more money than the first?

Compounding. By the second decade your earlier gains are earning gains themselves, so the snowball is bigger and rolls faster.

Is money in a drawer really "safe"?

It's safe from market drops but guaranteed to lose buying power to inflation. Over decades, that's a real loss too.