This topic just popped in some other thread, we will see few crucial aspects of this, to understand the possibility of HR actually evaporating the Black Hole. For base reference wiki can be referred. For HR. 1. The associated fluctuation is required to take place at just this side of Event Horizon. A. What is so special about EH or just near EH that such fluctuation to take place? For a very massive BH, the EH is as tidal free as any other region of space, no big deal curved space time at EH. B. Assuming that fluctuation does happen, then what is the probability of its occurring exactly on this side of EH? C. I read that event horizon is a 2 D entity, so what does this side of EH signify? D. This fluctuation must be random, no specific time interval can be assigned. Then what is the significance of calculating evaporation time, is it not a purely statistical exercise. 2. Which is a bigger effect? Absorption of CMBR by Black Hole or Hawking Radiation? If CMBR absorption is more then the beast would grow instead of evaporating?