Leonard Susskind on The World As Hologram

Leonard Susskind of the Stanford Institute for Theoretical Physics discusses the indestructability of information and the nature of black holes in a lecture entitled The World As Hologram.

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  Education

[otavioandradas]

why people can't simply respect how others do things? If he wants to walk, he will walk. If he wants to sit, he will sit. WHY internet is so full of arrogant people like you? THAT IS NOT A TV SHOW. He is giving a lecture, he does not care whether you like the way he walks around. Get a life!!!!

[Joel Friedman]

Excellent lecture. Also this guy sounds like Christopher Walken.

[ABW941]

So the universe is not really 2 dimensional but the information moves from the surface to the volume, or did i get that wrong?

[baidugames]

same complexity can mean different things, in all holograms our universes project, when will i return to the one that i find delight

[Darryl D]

Our Universe is believed to have a singularity where/when spacetime began, but at a Black Hole's singularity spacetime ends.However, even though the Big Bang event forms a sphere around us, we cannot see it due to the CMB radiation.Also, in Black Holes it is believed that a bulk of very high energy photons would be between you and the singularity, and from inside a Black Hole the singularity ceases to be a point in space, but becomes a point in time,surrounding you in all directions spherically.

[Darryl D]

Verk, the Universe is more like a White Hole. The 4D spacetime we are in would be its Event Horizon, and the Cosmic Microwave Background would be the singularity. Inside a Black Hole there would be a similar sphere of light around you, but of much higher energy, and this sphere would accelerate toward you until it crushed you in a point of infinite density. The CMB is low energy and is accelerating away from you. The CMB is in our past, but the singularity inside a Black Hole is in the future.

[Thinkin Tank]

See, This is why I wish i had money. I want to attend a university to learn from people like this in person. I study a lot and research an array of things on the internet but it would be so great to be sitting in those seats and speak with such intelligence.

[Bi0tch00]

That apple looks mega tasty

[Bi0tch00]

Yes it would. But if Jeff is simultaneously checking out Rachel's ass then it doesn't count.

[AnyponyZen]

"When you have eliminated the impossible, whatever remains, however improbable, must be the truth?"

It's a scientifically problematic saying though, since theoretically you can never remove ALL the possible options, only the ones you so far know to exist.

[Verklunkenzwiebel]

I guess compared to Susskind, my brain would be comparable to Charly's. But.. a thought popped in.. At the end of his lecture he mentions that that horizon would be a representation of everything that's beyond it. Same is true for Alice then, would it not? In essence, Alice looking at the event horizon from within a black hole would not differ from Bob looking at the expansion horizon. Equally so, were Charly beyond the expansion horizon looking in, it would be same as Bob looking at Alice?