Leonard Susskind - How does Dark Energy Drive the Universe?

Dark energy, the repulsive energy of empty space, was one of the most unexpected and astonishing discoveries in recent science. Most scientists had expected that the expansion of the universe would be slowing down due to the inward pull of gravity. In fact, the expansion of the universe is speeding up, revealing the presence of dark energy. What does it mean?



Leonard Susskind is the Felix Bloch Professor of Theoretical Physics at Stanford University, and Director of the Stanford Institute for Theoretical Physics. He received a BS in physics from City College of New York and a PhD from Cornell University.


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[littleblazer]

First I heard of this man. I actually understood what he said. I felt like I was on the edge of a chair with awe.

[RonaldModesitt]

I never tire of Dr. Susskind. Thank you for bringing him to us.

[wwm]

Fascinating discussion and props to both the interviewer (for asking excellent questions) and the interviewee for explaining the most complicated concepts imaginable in a comprehensive way.

[mikedang]

Always so lovely to see Dr. Susskind speak. His lectures and other content are very special and he's truly a joy to listen to.

[unstoppable-ar]

Found your channel and I've been watching your uploads. Thank you ❤️

[JimmyTaylor]

Dr. Susskind is the best! When he talks, it feels as if I'm having a chat with a cool Uncle about cars.

[willshaughnessy]

When discussing such anomalies..it's important to have a cawfee ...it's a NY thing

[abdulkaderalsalhi]

A great interview. Professor Susskind was frank and clear, a feature required from a true good scientist; the truth is that we yet do not know! We have to wait for some great mind such that of Einstein!

[ShaunClarkatLookoutFarms]

What is the image on Dr. Susskinds Tshirt? Anybody know. I know that might seem pedantic but I'm a curious fellow and it's an intriguing emblem.

[stringX]

9:09 Question here: does this imply that the plank distance is the smallest scale our consciousness can understand?

[BritishBloke]

The Cosmic Plumber....always worth a listen...

[jamesruscheinski]

If space of universe expands as cosmological constant, does energy have to increase in the same proportion to maintain conservation of energy over time (symmetry)

[dokilar]

John Malkovich impersonating Christopher Walken and now I can't unsee it.

[menacelurkingyet]

"Dark energy is an unknown energy that affects the universe on the largest scales."

[jamesruscheinski]

Equation relating uncertainties for time and energy to planck constant indicate time can produce energy? and in principle energy could be changed back to time?

[jamesruscheinski]

could time more than space in causation equation account for dark energy expansion of space? especially since time and space together in gravity space - time? dark energy expansion of space through causation with time?

[billredman]

Why is there an assumption that energies are localized and accumulated? Is it a linear sum? Or better yet, a localized linear sum per atom? Then the aggregate is localized? My brain is having a hard time with accumulations of dark energy in a vacuum.

[KaliFissure]

Our manifold….Surface (cos(u/3)cos(v/2), cos(u/2)sin(v/2), sin(u)/2) 0<u<4pi 0<v<2pi
Notice that 2 full rotations are needed to complete surface/world line.
Electron half spin and baryon asymmetry are artifact of this topology.

[noegojimmy]

"...Higgs' field, whatever that is..."
Thank You very much.

[trafyknits]

Can anyone imagine a clergyman ever saying that the church was, for decades, "thinking the wrong thing"? It's just stunning to see the utter difference between an honest man like Susskind and a charlatan/huckster otherwise known as a preacher, pastor, reverend or priest.