Perhaps my favorite three and a half hours of the internet month. (..though a F1 weekend runs close!)

1:30:48 re: F1 "There's a lot of physics involved. The physics involved is NOT the kind of physics where you can spherical cow your way out of complications." Wow! Such a wonderfully tight turn of phrase! Your speaking has really grown in fluidity, confidence and even erudition since I started listening to your KZfaq channel shortly before BIitU. I also appreciate your pacing. Most presenters take forever to present the germ of an idea. With Sean, the ideas keep flying.

After reading "Something Deeply Hidden" and listening to your podcasts, I find myself reading anything quantum physics related with your voice in my head. For example, I just got into the "Spin magnetic quantum moment" section of my physics textbook book and your voice just switched on!

Would be great to get timestamps on these questions.

Thank you so much dr sean for this amazing podcast

I love the variety of questions and responses in these q&a podcasts! There’s a nice mix of scientific questions with philosophy and personal ones, but all answered in a way that prioritizes reason. Very entertaining!

Can you please interview Neil turok?

30:57 WOW, Sean isnt a Star Wars nerd ..... I'm not quite sure how to handle that!

The thing I wanna ask you about. If the universe consists of two infinite 4d spaces, divided by a Planck-sized wormhole (like the center of a torus, the torus being open on the outside), could it be two 3d universes are pushed into real existence from a virtual state? Like Hawking radiation? Could all matter (except gravity) be confined to 3d while expanding in a negatively curved 4d space (the Gaussian curvature on the mouth of a torus is negative). Maybe our universe is, together with a mirror universe (antiprotons, antineutrons, positrons, and antineutrinos) expanding from a central tiny mouth, and when the both have accelerated away to infinity, the stage is set for a new inflation around the mouth, and two 3d universes are spat out, which again expand to infinity, etcetera. Is there an argument that reasons against this? Thanks in advance!

Cool. I live in ABQ. I had no idea you were in NM. How do you like it in the land of enchantment?

Professors: “don’t make excuses”. Also professors:

iv been watching you ever since i saw you on the history channel. i love your mind!!!

Very interesting, tahnk you. The correlation between the entropy and time is fascinating indeed.

People believe in things like the flat earth when almost EVERYTHING they did believe in let them down. Our society, gratefully has the freedom to do so but someone’s liberty, property and life is often the price. In times of injustice, the truth pays the price in the form of oppression for those who did nothing. Grateful for your wise words and wisdom. And about that guy who said the earth was round….well you know the rest.

Perhaps you've been asked this before. (I know, i'm way down on the list of questions that get answered first). Eric Verlinde. Respectable? If not then fine, if yes then would you care to comment on his ideas about emergent gravity? Thanks for all the free education. Gratefully received.

Thank you, Sean.

i bought Something Deeply Hidden I look forward to reading it

These are a pleasure to listen to.

Great show, your AMA are amazing content. Thanks Mr Dr Sean

Never mind, you answered my question in the video. Sounds like you liked your time in the land of enchantment.

Hello prof Sean Carroll, for a long time I have this question and I can't find the answer, In your research about "emergence" I always wonder if the in 2009 introduced theory on emergent or entropic gravity by prof Erik Verlinde of the university in Amsterdam? (Netherlands) if you find the time thank you so much. (later I found some more info and Erik Verlinde)

Congratulations Sir 🎊 best wishes on your new post, philosophy is an amazing discipline, its very new to me but thanks to many of your Vlogs have encouraged me to to learn as much as I can.

I wish I could understand “Ro is not a point in space, it’s a point in time.” Sigh. My intuition of falling into a black hole is that eventually your mist of atoms that used to be your body will reach the singularity due to the force of gravity, which is so strong that nothing could escape it. And it will definitely happen at some point in the future. Because of the inescapable gravity. How does it become a time coordinate though??? sigh.

Penrose's idea suffers major flaws. It's woowoo. The man forgets that our closed 3d space is actually expanding on a 4d substrate space. No new big bang can develop from that. Only if we consider matter confined to a 3d structure around the mouth of a pre-existing 4d Planck-sized wormhole, two 3d structures can emerge with accompanying emerging thermodynamic time. The 4d wormhole, between two hyperbolic 4d spaces and itself part of it, naturally pushes the virtuality into real existence.

Thanku

Bumping into those guys is pretty cool.

How's the publish or perish paradigm working out?

Yeah!!

Changing my mind about understanding of things on the go. Barely even notice. Thanks to Sam Harris and a guy called Leo Gura.

for sure though try to interview Cormac McCarthy?

is there or should there be a limit to quantizing gravity

Awesome

I'm amazed how he can speak so clearly. It's like I couldn't even write an essay better than the way he casually speaks.

7:08 sounds a little like psychohistory. 😀

Video games not wasting time? It's really easy for that kind of entertainment to go from self-care to self-destruction.

Classic 👍

Woooohoooo

Or, it could be that we're not technologically advanced enough to detect technologically advanced civilizations.

Why?

Time stamps Sean

No nuclearwar

Cosmic Inflation could be a result of many particles that travelled at/near the speed of light to hit each other (at the center of the entire universe). The expansion of the observable universe and the density of the universe after the Big Bang/Bounce shows that space is increasing and space is coming into the observable universe reducing the density related to the growth of the observable universe. So it seems that Dark Energy is not the right explanation for the expansion of the universe. And both space and matter could emerge uniformly after the first formation of the universe. And perhaps, virtual particles in space don't reduce with interactions. But forces consume energy from matter particles and cause them to reduce gradually. If the universe is removing nothingness with the expansion of the entire universe, then possibly the universe is going to infinity without stopping. Also, the universe could increase its density at the center of the universe as a cyclic process to balance the density between matter and space in the entire universe. Probably, Big Bounces could conserve the energy density in the universe. Big Bang doesn't provide an explanation for the formation of energy. Introducing the originless energy called Dark Energy is like a trick that was used to change science to ignore the existence of space/universe before the Big Bang. And they tried to introduce a singularity with infinite density by applying a negative time to the General Relativity theory to explain the size of the universe. But General Relativity is a geometric theory that is not related to Quantum Reality. And according to General Relativity, the universe was a very large object when the time is equal to zero or larger than zero. Particles become massless when they travel at the speed of light. So a singularity can't be massless unless it was formed as a Big Bounce that happened very faster. Perhaps, gravitational attractions in the previously expanded universe cause to accelerate matter to one single direction (to the center) after the expansion of the universe.

meow

I sadly do not believe a democracy can exist under monetarism and capitalism. We're in a feudalistic society and classism is the outcome. Politicians do not solve problems, technicians solve problems. As long as we live in an exploitative monetary system such as capitalism, self preservation will drive such behavior that one can not trust another. I truly do not understand why we can't take back the Earth's resources and declare them as belonging to all of us equally and work together under a resource based economy. I truly believe that is the ONLY way to a true democracy. (I'm autistic and have an expressive language disorder so I apologize for the poor communicative skills.... I hope I made sense.)

Sean, As an aspiring philosophy professor, have you read anything Ayn Rand has written?

It's interesting that you are an avid fan of basketball, considering that most popular sports are zero-sum games, where half the players and fans leave happy, and half of them leave disappointed. I was into the intensity of the Duke-UNC rivalry in the 1990s, but these days it's harder to get enthusiastic about something where the long-term satisfaction expectation is ~50%. philosophically, humans can strive for at least 99%, or 99.9%, 99.99%, etc.

Near Death Experiences shows that they move away from their body and watch outside world like ghosts.

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you lost me a 3hrs 12m, when you started going on about "conspiracy theorists", and you failed to even follow your own techniques of objective analysis - you are yourself a conspiracy theorist if you think being anti-vaccine automatically makes you a "conspiracy theorist" - have a think about it, and apply your own suggestions to yourself, and ask yourself have you been fed disinformation by institutions and individuals you think are credible... perhaps they are not so infallible... it's possible, isn't it? consider what might motivate individuals and institutions to push disinformation.

Just watched Jordan Peterson's discussion with Sir Roger Penrose. Unfortunately, Sir Penrose is a dogmatic Copenhagenist and I wish that Sean and Jordan could talk as their ideas are more compatible and that Sean could help Peterson flesh out his ideas.