Pre-trade protection rules for surprise declines

Surprise extremes stay possible

Extreme market declines are treated as rare events that can still occur at any time. They typically arrive as surprises.

A surprise extreme is a rare, large decline that arrives without a reliable advance warning. Tools that mark trends and reversals are described as insufficient for seeing those extreme crash events coming with certainty.

Selective trade memory and the next position

Keeping winning trades in memory while losing trades slip away is identified as a process failure that makes trading dangerous. That habit is selective trade memory: winning trades stay in view while losing trades drop out of review.

A complete decision process must treat every new position as capable of becoming a loss because of external or other factors.

The process priority is framed as protecting the trader and available capital, not estimating how large a win could be. The recommended pre-trade stance is an open mind plus a prepared response if the worst outcome occurs.

That worst-case stance is the condition under which the trading psychology process is allowed to run: a single procedure that turns rule inputs, market state, and execution constraints into an entry, exit, or abstention signal over the system holding period.

Forecast certainty after the fact

After-the-fact claims of having forecast a decline around an anniversary and an options expiration are used to illustrate overconfident certainty.

Forecast certainty is the belief that an extreme decline can be known in advance with complete probability. That belief sits against the earlier point that trend and reversal tools are insufficient for seeing extreme crash events coming with certainty.