Market Cycles, Bubbles, and Crashes

The Pattern That Always Repeats

Bubbles and crashes have happened in tulips (1637), South Sea (1720), railways (1840s), Florida real estate (1925), the Roaring Twenties (1929), Japan (1989), dot-com (2000), housing (2008), crypto (2021) — and they will happen again.

The technologies change. The psychology doesn't.

The Five Stages of a Bubble (Hyman Minsky's Framework)

1. Displacement

A real innovation appears — railways, the internet, electric vehicles. Smart money starts buying because it actually matters.

2. Boom

The asset rises. Media attention grows. Mainstream investors notice. Prices start to outrun fundamentals, but everyone has a story for why "this time is different."

3. Euphoria

Valuations become absurd. New investors flood in — friends, family, taxi drivers, your aunt. Skeptics are mocked. Companies with no revenue go public at billion-dollar valuations.

4. Profit-Taking

The smartest money quietly exits. Volume rises but prices stall. The first cracks appear; they're explained away.

5. Panic / Capitulation

Selling cascades. Headlines turn apocalyptic. The same crowd that was euphoric three months ago swears they'll never invest again. Bottoms form here.

How to Recognize a Late-Stage Bubble

A few uncomfortable signs that have appeared at every major top:

• IPOs from unprofitable companies hit record highs
• Margin debt at record highs
• "It's a new paradigm — old metrics don't apply"
• Crypto/penny-stock speculation explodes
• Books titled "Dow 36,000" or "This Time Is Different"
• Even cab drivers are giving stock tips
• Volatility falls to multi-year lows

You can never time the top exactly. But when several of these line up, trim risk, raise cash, take some chips off the table. Future-you will thank past-you.

How to Recognize a Bottom

The mirror image:

• "Stocks are a terrible investment" makes the cover of major magazines
• High-quality companies trade at 10x earnings
• Even good news is sold
• Investor sentiment surveys hit multi-year lows
• Forced sellers (margin calls, redemptions) dominate volume
• Friends who normally talk markets refuse to discuss them

Bottoms are made when the last optimist gives up.

Mean Reversion Is the Most Reliable Force

Over long periods:

• Above-average valuations lead to below-average future returns, and vice versa
• Margins revert to historical norms
• Hot sectors cool off
• Cold sectors eventually find buyers

Single best free predictor of 10-year stock returns: the starting valuation. High starting P/E → low future returns. Low starting P/E → high future returns. Not a market-timing tool — but a realistic expectation-setter.

What to Do During Crashes

The hard part is that crashes feel completely different from charts in books. Real crashes come with:

• Job losses
• Friends whose finances collapse
• Cancellation of plans
• A constant drumbeat of bad news

You will feel like selling. That's the entire point — the market needs sellers to clear out before it can rally.

The discipline:

1. Don't add leverage going in. Margin and panic don't mix.
2. Hold an emergency fund. Cash buys you patience.
3. Keep buying on schedule. Dollar-cost averaging into a crash builds wealth.
4. Don't watch every day. Headlines become a feedback loop with your own fear.
5. Re-read your investment plan. Did the long-term thesis change? If not, hold.

The Quiet Truth

Crashes are when wealth changes hands — from those who bought late and panicked to those who had cash and discipline. Every great fortune in markets was made by the second group.

If you can stay solvent and rational through a 50% drawdown, you'll be richer in 5 years than 90% of investors. Not because you predicted anything — but because you didn't sell at the bottom.

"Be fearful when others are greedy, and greedy when others are fearful." — Warren Buffett. Five-hundred years of bubbles say he's right.