The harsh truth about the crypto world is right in front of us, but many people fail to see it clearly.

Some are fixated on the "doubling dream," ignoring a life-and-death issue—the principal is the bottom line. Buffett's words are applicable in any market:

Rule one, don't lose money.
Rule two, always remember rule one.

In cryptocurrency trading, this is not just a motivational quote; it's a bloody lesson.

**How harsh is the cost of losses? Mathematics will tell you**

The market is cold-blooded; the bigger the loss, the higher the cost of rebound. Look at these numbers:

Lose 10%, need to earn 11% to break even.
Lose 30%, need to earn 43%.
Lose 50%, you need to double your money.
Lose 70%, need to earn 233%—that's basically a dream.

Small losses can be remedied through operations, but once you're caught in a big loss swamp, the way back becomes distant. This is not alarmist; it's probability and mathematics staring at you.

**Stop-loss is never just a technical issue; it's your way of survival**

Many treat stop-loss as a purely technical indicator, but that's wrong. It relates to your account health, fund safety, and long-term survival.

Persist through the tough times, admit mistakes promptly, and your account can continue to survive. As long as the account is alive, opportunities will keep coming. But if you stubbornly hold on and refuse to admit mistakes, losses will snowball, and eventually, the crash will be inevitable—then it's too late to regret.

**Living longer is more valuable than earning big once**

This is the golden rule.

Keep your account steady, protect your principal, and you'll find real opportunities in the crypto market. Those moments that can make you big money only come to those who survive long enough.

I don't have any magical secrets, just one logic: keep your account steady, stay in the market, and you'll go further. I once stumbled in the darkness too, but now the light is in my hand, shining constantly. The light is right here—are you coming with it?