Definition
The emotion default is the human tendency to act on feeling before the slower, deliberative mind can intervene. It is the angry email sent at 11pm, the impulsive yes to a request that should have been a no, the snap judgment delivered before the facts arrive.
Parrish frames it as the first and most dangerous of the four biological defaults because it is the fastest. By the time the cortex has assembled a considered response, the limbic system has already chosen a reaction — and committed you to it.
The key distinction: feeling an emotion is not the default. Acting on it without pause is.
Why it matters
Where it shows up
In feedback that lands harder than intended. In purchases made within an hour of seeing an ad. In rebuttals that go further than the original disagreement warranted. The pattern is always the same: trigger → feeling → action — with no gap between feeling and action.
The fix is not to suppress emotion (suppressed emotion leaks anyway). It is to insert a deliberate pause — a delay long enough for the slower system to weigh in. Parrish's tool of choice is a personal rule: "I do not send important messages within an hour of a strong feeling."