i have read about Hawking's theory of BH radiation based on the idea of spontaneous particle pair creation at the EH wherein, on occasion, one of the particles is absorbed by the BH while the other escapes to become real. since the one which is absorbed is always of negative energy (whatever that means), the mass of the BH is reduced, and over time, hawking theorizes that the BH would eventually disappear. assuming hawking is correct and this mechanism does indeed occur, it seems to me that the effect is rather small. and since every BH in existence is constatnly bombarded with enormous numbers of photons from elsewhere in the universe, which add energy/mass to the BH, it seems that even with the small reduction in mass due to hawking radiation, the BH would always increase in total mass over time. am i missing something or misunderstanding hawking theory in some way, or did hawking consider this in his theory (ie, the radiation is greater than the amount of energy entering the BH due to absorbption of photons)? or am i correct?