If a black hole were the universe’s ultimate alibi, it would simply swallow the crime scene, erasing every trace before investigators could even notice. The event horizon would act like a cosmic no‑escape clause, leaving no evidence for any forensic analysis. In other words, the universe would be left with a mystery that, quite literally, has no data to investigate.

Exactly. The black hole takes the evidence, and with it, the whole causal chain. In the end, the only clue left is that the universe ran out of entropy to write it down.