Janna Levin

They don't destroy the kind of properties of the vacuum because they cancel out each other's spin maybe, each other's charge maybe, things like that. But they kind of froth around. They come, they go, they come, they go. And that's what we really think is the best that empty space can do in a quantum mechanical universe.

They don't destroy the kind of properties of the vacuum because they cancel out each other's spin maybe, each other's charge maybe, things like that. But they kind of froth around. They come, they go, they come, they go. And that's what we really think is the best that empty space can do in a quantum mechanical universe.

Now, if you add an event horizon, which, as we said, is really fundamentally what a black hole is, that's the most important feature of a black hole. The event horizon, if the particles are created slightly... on either side of that event horizon, now you have a real problem. Now the pair has been separated by this event horizon. Now they can both fall in, that's okay.

Now, if you add an event horizon, which, as we said, is really fundamentally what a black hole is, that's the most important feature of a black hole. The event horizon, if the particles are created slightly... on either side of that event horizon, now you have a real problem. Now the pair has been separated by this event horizon. Now they can both fall in, that's okay.

Now, if you add an event horizon, which, as we said, is really fundamentally what a black hole is, that's the most important feature of a black hole. The event horizon, if the particles are created slightly... on either side of that event horizon, now you have a real problem. Now the pair has been separated by this event horizon. Now they can both fall in, that's okay.

But if one falls in and the other doesn't, It's stuck. It can't go back into the vacuum because now it has a charge or it has a spin or it has something that is no longer the property of that vacuum it came from. It needs its pair to disappear. Now it's stuck. It exists. It's like you've made it real. So in a sense, the black hole steals one of these virtual particles and forces the other to

But if one falls in and the other doesn't, It's stuck. It can't go back into the vacuum because now it has a charge or it has a spin or it has something that is no longer the property of that vacuum it came from. It needs its pair to disappear. Now it's stuck. It exists. It's like you've made it real. So in a sense, the black hole steals one of these virtual particles and forces the other to

But if one falls in and the other doesn't, It's stuck. It can't go back into the vacuum because now it has a charge or it has a spin or it has something that is no longer the property of that vacuum it came from. It needs its pair to disappear. Now it's stuck. It exists. It's like you've made it real. So in a sense, the black hole steals one of these virtual particles and forces the other to

to live. And if it'll escape, radiate out to infinity, and look like to an observer far away that the black hole has actually radiated a particle. And the particle did not emanate from inside. It came from the vacuum. It stole it from empty space, from the nothingness that is the black hole.

to live. And if it'll escape, radiate out to infinity, and look like to an observer far away that the black hole has actually radiated a particle. And the particle did not emanate from inside. It came from the vacuum. It stole it from empty space, from the nothingness that is the black hole.

to live. And if it'll escape, radiate out to infinity, and look like to an observer far away that the black hole has actually radiated a particle. And the particle did not emanate from inside. It came from the vacuum. It stole it from empty space, from the nothingness that is the black hole.

Now, the reason why this is very tricky is because in the process, because of this separation on either side of the event horizon, the particle it absorbs, it has to do with the switching of space and time that we talked about, but the particle it absorbs, well, from the outside, you might say, oh, it had negative momentum. It was falling in.

Now, the reason why this is very tricky is because in the process, because of this separation on either side of the event horizon, the particle it absorbs, it has to do with the switching of space and time that we talked about, but the particle it absorbs, well, from the outside, you might say, oh, it had negative momentum. It was falling in.

Now, the reason why this is very tricky is because in the process, because of this separation on either side of the event horizon, the particle it absorbs, it has to do with the switching of space and time that we talked about, but the particle it absorbs, well, from the outside, you might say, oh, it had negative momentum. It was falling in.

From the inside, you say, well, this is actually motion and time. This is energy. It has negative energy. And it absorbs negative energy. Its mass goes down. Black hole gets a little lighter. And as it continues to do this, the black hole really begins to evaporate. It does more than just radiate. It evaporates away.

From the inside, you say, well, this is actually motion and time. This is energy. It has negative energy. And it absorbs negative energy. Its mass goes down. Black hole gets a little lighter. And as it continues to do this, the black hole really begins to evaporate. It does more than just radiate. It evaporates away.

From the inside, you say, well, this is actually motion and time. This is energy. It has negative energy. And it absorbs negative energy. Its mass goes down. Black hole gets a little lighter. And as it continues to do this, the black hole really begins to evaporate. It does more than just radiate. It evaporates away.

And it's intriguing because Hawking said, look, this is going to look thermal, meaning featureless. It's going to have no information in it. It's going to be the most informationless possibility you could possibly come up with when you're radiating particles. It's just going to look like a thermal distribution of particles, like a hot body.

And it's intriguing because Hawking said, look, this is going to look thermal, meaning featureless. It's going to have no information in it. It's going to be the most informationless possibility you could possibly come up with when you're radiating particles. It's just going to look like a thermal distribution of particles, like a hot body.

And it's intriguing because Hawking said, look, this is going to look thermal, meaning featureless. It's going to have no information in it. It's going to be the most informationless possibility you could possibly come up with when you're radiating particles. It's just going to look like a thermal distribution of particles, like a hot body.