Empathy Gap
The tendency to underestimate how much a different emotional or physical state, such as anger, hunger, pain, or arousal, will change someone else's judgment, or your own future judgment.
The empathy gap, sometimes called the hot-cold empathy gap, was named by behavioral economist George Loewenstein. In a "cold" state — calm, fed, rested — people consistently underestimate how differently they will think and act in a "hot" state like anger, fear, pain, or craving, and vice versa.
It is not really a failure of empathy toward other people so much as toward other versions of yourself: a well-rested planner underestimates how a sleep-deprived version of them will behave, and a calm negotiator underestimates how an angry counterpart is actually reasoning right now. It explains why advice given from a cold state, "just calm down," so often lands as useless to someone in a hot one — the advice-giver is not wrong about the facts, just about how differently those facts get weighed under a different state.