Cosmology | Lecture 7

[agapitoflores001]

This is really a great surprise for a cosmology class.

[rh7189]

Developed a huge lump in my throat...when Susskind ...finished unpacking this amazing scenario...which concluded with "the seedlings of galaxies"...what .an emotional crescendo....you're a genius ..Leonard!

[dillinger9999]

I read his book. He's very good at explaining Physics 

[dmkramerica]

Watching Leonard Susskind free associate and perform thought experiments in real time is a joy.

[TrollDicked]

@ 40:51 Prof. Susskind says," ...erases all the information about how it started" with respect to the initial conditions of the universe. Is not Susskind's hypothesis in his book 'The Black Hole War: My Battle with Stephen Hawking to Make the World Safe for Quantum Mechanics' prove that information is never lost? And this is why he proposed his famous holographic principle? Perhaps I am not comprehending the cosmology well enough at this level. Just asking...lol.

[coastwalker]

So curiously, a nice analogy of the slope of the scalar field would be a black hole evaporating by Hawking radiation and the cliff the final explosive death of the end of it. as its radius shrinks to a microscopic size. So you have to ask whether there is any difference in the evaporation of a microscopic black hole in today's universe and one in a universe where there is nothing between the event and the radius of the observable universe - some time in the remote future?

[kiroo54]

love it such a nice surprise

[foketesz]

His honesty helps a lot when dealing with uncertainties. A great scientist, Hope history does him justice. Somebody said that the value of ancient times' masters reside on their scarcity... Hardly the case nowadays, but...

[foketesz]

this is a treat

[MartinBaco]

Despite my education in different field of science with little knowledge of theoretical physics I think I'm able to follow for me very fascinating and surprising story of early phase of the universe and how primordial fluctuations of quantum mechanic scalar field observable on the surface of last scattering became seats of galaxies-islands with magnified energy density-as result of rapid slow down of space expansion at the end of inflation phase and transform.of accumulated energy into particles

[MartinBaco]

thanks for these lectures, prof. L.Susskind is virtuoso in his field

[fuzzface89]

@MartinBaco nice one now tell me about teleportation, thanks

[MartinBaco]

@fuzzface89 Why, do you feel something unusual when you listen to my favourit list?