event horizon

The term "event horizon" is crucial in understanding black holes, representing a boundary beyond which nothing can escape the gravitational pull.

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Definition

(technical, academic)The boundary around a black hole where the escape velocity exceeds the speed of light, making escape impossible.

Once a star crosses the event horizon, it is inevitably pulled into the black hole.
The event horizon is often depicted as a dark sphere in space.

(figurative)A point beyond which there is no return or recovery.

The company's financial troubles reached an event horizon, beyond which bankruptcy was inevitable.
In relationships, trust issues can create an event horizon that makes reconciliation difficult.

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