I am at odds over how Hawking Radiation can cause a problem with entanglement - or even how the pair particle to a Hawkings particle can enter a black hole. The notion behind Hawking Radiation, as I understand it, is that a particle divides above the event horizon creating two entangled particles. One escapes, the other crosses the event horizon into the black hole. But given "Bob's" frame of reference, the one from well outside the event horizon, nothing crosses the event horizon. Alice (the adventuress who dives into the hole) may see a black hole's interior, but it is simply not part of Bob's universe. And that Hawkings radiation that Bob sees isn't part of Alice's universe. Nobody see's a paradox. So why are some worried about Hawkings particles becoming entangled with each other?