Human wiring values a loss about twice as heavily as an equal gain — useful for not being eaten, catastrophic for trading. It produces the classic destroyer pattern: snatch small profits the moment they appear (locking the good feeling), while letting losers run 'until they come back' (postponing the bad one). The result is mathematically upside-down: small wins, big losses.
Mechanical overrides — because willpower loses
- Decide exits BEFORE entry, when you're a strategist. Mid-trade, you're a hostage negotiating with your own biology.
- The knockout rule is loss-aversion surgery: the stop executes itself — 'it might come back' isn't on the menu. Internalize that as a feature, not a cruelty.
- Flip the frame: count a rule-following stop-out as a WIN in your journal (it is — you paid the planned premium for the trade). The scoreboard you feel should reward the process.
- Review your average win vs average loss monthly. If avg loss > avg win, loss aversion is running your account — fix exits, not entries.
You can't delete the wiring — every trader alive has it. You can only build rules that make the wired choice impossible. That's what all professional structure ultimately is.