The setup that fired while you weren't looking.

You're four charts deep into one pair, watching a level that hasn't moved in twenty minutes. Two tabs over, on a pair you haven't glanced at since morning, your exact strategy just lined up — and fired without an audience.

You'll never even know it happened. That's the quiet cost of manual watchlists: you can only watch one thing at a time, so the market trades without you on everything else.

Not because your strategy failed — because your attention is a single, limited resource, and the market doesn't wait for it to be free.