Inside the event horizon, the nature of space and time changes dramatically. As an object falls into a black hole, it experiences time differently, with their future leading them inevitably to the singularity, which is a point in time rather than space from their perspective.

The information that falls into a black hole is stored on its horizon in a way that cannot be easily reconstructed, resembling a hologram rather than a photograph.

The event horizon of a black hole is a boundary beyond which nothing can escape, not even light. It's a point in spacetime that separates events that can affect an outside observer from those that cannot.

Using the time-like Killing vector outside the horizon of a black hole allows for the correct determination of the black hole's mass, despite the singularity. The ADM mass, which I refer to as E sub A, combines total rest mass and gravitational binding energy, but it differs from the regular energy E, which is covariant and relies on asymptotic flatness.

Black holes are flawless in the sense that you can completely understand them by looking at just their charge, mass, and spin; every black hole with those properties is identical to every other black hole.

Almost all the information in the universe is in the form of black holes; they contain significantly more information than anything else.

The experience of falling into a black hole varies with its size. For larger black holes, the curvature of spacetime is less noticeable, making the crossing of the event horizon less dramatic compared to smaller black holes, where the effects are more pronounced.

The black hole's interior might be quantum entangled with Hawking radiation outside, allowing for information retrieval without physically moving it from inside to outside.

The information paradox arises because if a particle is created just outside a black hole's event horizon, and one falls in while the other escapes, the one that falls in becomes real and cannot return to the vacuum, leading to a loss of information.