Losing stuff down a black hole

Understand

Over the years, the so-called black hole information loss paradox has generated an amazingly diverse set of (often radical) proposals.

• However, forty years after the introduction of Hawking's radiation, there continues to be a debate regarding whether the effect does, in fact, lead to an actual problem.
• In this paper we try to clarify some aspect of the discussion by describing two possible perspectives regarding the landscape of the information loss issue.
• Moreover, we advance a fairly conservative point of view regarding the relation between evaporating black holes and the rest of physics, which leads us to advocate a generalized breakdown of unitarity.