In quantum physics, a monster is an arrangement of matter that has maximum disorder. The high-entropy

Entropy

Entropy is a thermodynamic property that can be used to determine the energy available for useful work in a thermodynamic process, such as in energy conversion devices, engines, or machines. Such devices can only be driven by convertible energy, and have a theoretical maximum efficiency when...

 state of monsters has been theorized as being responsible for the high entropy of black hole

Black hole

A black hole is a region of spacetime from which nothing, not even light, can escape. The theory of general relativity predicts that a sufficiently compact mass will deform spacetime to form a black hole. Around a black hole there is a mathematically defined surface called an event horizon that...

s; while the likelihood of any given star entering a "monster" state while collapsing is small, quantum mechanics takes into account all possible outcomes so the monster's entropy has to be taken into account when calculating black hole entropy.