Risk Management Before Entry
What would tell you the idea was wrong, as opposed to early?
The idea
A trade plan defines invalidation, maximum loss, time horizon, and exit conditions before emotion rises.
In the real world
A thesis is wrong if adoption data misses a threshold, not merely because price dips.
Going deeper
Invalidation written before entry is a different object from invalidation decided during a drawdown. The first is a judgement made with no money at stake; the second is made by someone looking for a reason to stay in.
A useful plan names four things: what would prove the idea wrong, the maximum acceptable loss, the time horizon, and the conditions for exiting. Note that price moving against you is often not invalidation — if the thesis rested on adoption reaching a threshold by June, a 20% drawdown in March is noise against that criterion, however it feels.
Where it stops applying
Plans written too rigidly get abandoned when circumstances genuinely change. The point is that revisions should be conscious and reasoned, not improvised under pressure.
Why it matters
Writing invalidation down before entry is what stops it being rewritten afterwards.
Try this today
Write the reason, invalidation, loss limit, and exit before entering.
Test yourself
A thesis rests on adoption reaching a threshold by June. Price falls 20% in March with adoption on track. Is the thesis invalidated?
Show the answer
No. The invalidation condition was an adoption figure by a date, and price is not that condition. The reason to define it beforehand is that a 20% drawdown is exactly the moment when a new and more comfortable criterion suggests itself.
Learn this in the feed Answering from memory, then again days later, is what makes it stick.