"The World As A Hologram" - Prof. Raphael Bousso (1 of 3)

***UPLOADED WITH PERMISSION FROM THE SPEAKER***


black holes, information, and quantum gravity, oh my!


To see the whole presentation:
http://www.uctv.tv/library-science.asp?tabs=all

then find and click:
The World as a Hologram
(54 min. | #11140 | 3/2/2006)

thanks, premed411!

LOTS of classes from UC Berkeley:
http://webcast.berkeley.edu

Professor Boussou's Fall 2007 Quantum Mechanics Class (audio only):
http://webcast.berkeley.edu/course_details.php?seriesid=1906978479

Category:

Science & Technology

Tags:

• raphael
• bousso
• black
• hole
• holes
• information
• quantum
• theory
• gravity
• physics
• mechanics
• spacetime
• geometry
• universe
• scienc

[OsyenVyeter]

part2

Satan" i believe it was. it got me started on Rabidape and remains solidly my fav movie from him, i send it to all who debate me and demonstrate a clear lack of comprehension of the LAW of evolution. oh and one more thing: to anyone who doubts evolution on the basis that its a theory ask them this...do you doubt gravity? thats just a theory too

[RabidApe]

did you watch it all the way to the end?

I didn't learn too much in the way of new 'data' I guess, but what 'got me' was the counter-intuitive relationship between information content and geometry.

I'm going to do a 'RabidApe' video about this, probably a short 'overview' followed by my kid-in-a-candy-store-babbling about the implications...

[healthyaddict]

Thanks for sharing this!!! =) Very interesting!

[RabidApe]

I couldn't NOT put it up!

[rohelinetee]

If anybody is wondering, the symbols written using atoms are in japanese. They are pronounced "genshi"（原子） - which means atom or atoms(there is no prular form for nouns in japanese)

[Katalyzt]

He forgot to mention Leptons, Hadrons(Mesons, Baryons) which all interact via strong force, but I get his point.

Katalyzt

[acuaman42]

I suggest to viewers to read the latest book by Stephen Hawking, THE GRAND DESIGN. In it he explains almost the same as this speakers says but also adds that there is not just one universe but thousands of millions more. The book is easy to read for anyone at college. The only problem for some people is that the final conclusion of Prof. Hawking is that there is no GOD needed for the formation of any universe. This does not like to all religion leaders but who cares about them.

[thefullmonte03]

Maybe he has a speech impediment asshole. He is a professor in physics, not in public speaking, or the english language

[CACBCCCU]

Because the sources of gravitons are subject to inertia and gravity is possibly bound to electromagnetism at the higher end of the energy spectrum, there is likely no causality violation necessarily involved in gravitons being slightly superluminal, IMO.

[CACBCCCU]

Supposing there's a random sea of gravitons and each is either raising space a bit or lowering it, where lowering it on a 2-d model universe matches the elastic-sheet model of gravitational potential, while the full raising/lowering cycle for each graviton is in lightyears. I assume in the lower limit a lightspeed propagation of gravitons and a source always emits gravitons at the positive maximum of the cycle. A spectrum of gravitons is possible, and I'll suppose gravitons can form into light.

[CACBCCCU]

For "patterns in nature" useful in explaining quantum gravity, how about ring galaxies such as Hoag's Object? I'm guessing the ring diameter is defined by ultralong-wavelength core gravitons, with the ring sitting on the boundary between positive and negative gravitational phases, giving 3/4 a wavelength between ring and core, for a graviton wavelength of about 75,000 light-years.

Seems to me the core+ring form arises by simple evolution from a highly random distribution using this form of QG.

[anarchy3E]

why does he stutter al the time? is this his first lecture? does he need mommy to hold his hand?

one would expect some eloquence from a mother foking profesor, shit, profesors have gone to the dogs

[whitenightf3]

In some sense man is a microcosm of the universe; therefore what man is, is a clue to

the universe. We are enfolded in the universe.

David Bohm

[humanist7117]

Very clear exposition of a complex and difficult concept.

[madderscientist23]

fascinating video incidently!! :)

[madderscientist23]

Hmmm, moving avatars are clever, but annoying. Can't wait for the novelty to wear off so that they are no longer used and, therefore don't detract attention from the subject matter (or make u feel queasy) :)