The Bridge to Quantum Gravity
Black hole thermodynamics provides the strongest evidence that gravity and quantum mechanics must be unified. The existence of temperature and entropy implies that black holes have microstates, which are likely described by a future theory of quantum gravity.
Looking Ahead
In the next chapter, we will explore the mechanism behind this radiation: Hawking Radiation itself. We will see how quantum fluctuations near the horizon lead to particle creation and black hole evaporation.