take away a universe time will still exist take away time a universe can not exist
@timwalling310112 минут бұрын
i think at all times in the universe every next one second in the universe everything will have changed even space itself yet time does not change nor promote change.. it simply denotes change the past is the proof
@thomasarendt74693 сағат бұрын
No clue what is going on in this one
@user-ib6gb9sr4b9 сағат бұрын
As for my cynical view, it seems that those who have (been screamed climate change facts at since the late 50's) voted for/continue to vote with greed/hate or ignorance. And so they reap what they sow. Some won't wake up until Katrina 17.9 comes through their town. Don't tell anyone, but it does my heart good. Deny science? Enjoy sleeping in your dog house. As your literal house was washed away/burned up/you 100% bought it. Just tell your ignorant neighbor that had their house flattened by a tornado, that it is just a theory/conspiracy. I'm sure the insurance company is of the same belief.
@Jon.B.geez.10 сағат бұрын
Reading Carroll's spacetime book. It is great, but I wanted to let Dr. Carroll know: I hate physicists notation! I came from mathematics where everything is written precisely, rigorously and without any room for ambiguity. Then I saw equation 2.73 for the Wedge product and I wanted to jump off a cliff. It is SOOOOOOO bad. I wonder, has a physicist never read Bott and Tu? Mathematicians have perfectly understandable notation for wedge product. Why would physicists reinvent the wheel, especially to do so so darn terribly?
@thesilentmajority276512 сағат бұрын
Debating this question in my head as a youth is the reason i found god
@flowerlandofjohn15 сағат бұрын
Please do a rebuttal on Joe Rogans episode with Terrence Howard. Few people can keep up with the “word-salad” expressed. But you are certainly one that could keep up and in good sense explain where things go south … Go Sean Go! 🙏🏻🤩
@Skyl3t0nКүн бұрын
What a good video. Congrats
@kka107Күн бұрын
Thank you for realizing that there’s a large group of science enthusiasts like engineers with strong math skills who have little time for or interest in derivation details. I am currently reading and enjoying your book
@ehfikКүн бұрын
wow, that was a tour de force. perfect compression on the topic
@JB-fz1rv2 күн бұрын
Dear Prof Thank you for.all the lessons i believe to understand and achieved🙈 W=k(S) does this make sense? Best Cleaning Lady Berlin, Germany
@James-ll3jb2 күн бұрын
Obsolete. See Don Hoffman
@MrM9702 күн бұрын
Your love for fellow man / woman shines through
@dannyhuelva48973 күн бұрын
Can he write an accessible book about his Swampland Program?
@anhedonaut3 күн бұрын
16:54
@reinout48724 күн бұрын
Allan Holdsworth!
@CurtOntheRadio4 күн бұрын
thanks!
@stephenarmiger83434 күн бұрын
Enjoying! Thank you!
@IamPoob4 күн бұрын
Photon
@thomasmcqueen83994 күн бұрын
String theory has some major issues like the fact that there is no consensus on how many extra dimensions there are. Pretty weak, no doubt the math is super fun if you’re into math.
@joseHernandez-hw8wt4 күн бұрын
i was doing uber eats around pasadena, sucks. so i had to pay this dude a visit.
@youngsdrums4 күн бұрын
Also the bid about Skirts is so not true.
@danieljmarie4 күн бұрын
Has anyone else noticed that the more chatty or humorous the interviewee the more pseudo-science they spout?
@sonarbangla87114 күн бұрын
No one in the comment section commented about the 'landscape', Vafa debunked Susskind's landscape, but Lee Smolin's landscape is my favorite. He explains how natural selection decides the 20 fine tuned values of the parameter space.
@sonarbangla87114 күн бұрын
Success of string theory rests on quantum complementarity explained by Bohr (particles and waves) and given a more modern version by Susskind in which Alice jumps into the BH while Bob watches her fall, with two different experiences. Alice doesn't feel anything but Bob notices a pile up on the horizon of everything falling into BH. This BH complementarity along with duality Holographic Principle of string theory enabled to describe the fluid of the material that makes up the BH, with exact calculation of its mass and quantum gravity. Not yet displayed experimentally, but soon will be.
@Kokally4 күн бұрын
It's not that String Theory lives in 10 dimensions, it's that we've had to mathematically give it 10 dimensions in order to shoehorn it into our observations. Sean was absolutely correct in pointing out that the answers Cumrun was giving were abstract, because it's too complicated to have any specific detail. It's the theoretical physicist's version of a religion, complete with the revelations-style Armaggedon prophecy of a metastable universe.
@florianbuerzle27034 күн бұрын
Having a PhD in theoretical physics, I usually have at least a basic idea of what's going on when it comes to a topic in physics. But here I had no idea what Cumrun was even talking about 😂
@BorealGhost134 күн бұрын
Mother fucking ghost girl randomly scared me
@SandipChitale4 күн бұрын
Now I am starting to understand what Eric Weinsten complains about.
@iridium19114 күн бұрын
Actually Weinstein never mentions these aspects of string theory! I had no idea about what a duality actually was, and that strings are simply one description of a grander theory, and that there are many other ways to describe the theory that has no strings at all! I think this is a critical feature of the theory which underpins why so many physicists think it is so ripe for research. It seems that it's not just a "theory of objects that look like strings/loops"
@JarrettMooreS.C.5 күн бұрын
String theroy is real as hairs on my ballsak
@JarrettMooreS.C.5 күн бұрын
AS matter of fact yhey should call it ballsack hair theroy
@oszb5 күн бұрын
What's with the random noises? Like at 46:02.
@radfordmcawesome79475 күн бұрын
it sounds like compression artifacts or the ghosts of small children 😬
@jimmybrice63605 күн бұрын
boy, i dont think of a virtual reality as being meaningful. by virtual reality, i am talking about something other than god creating it. if i knew i was some figment of some being's imagination, pull the plug on me. i choose non-existence over that.
@jimmybrice63605 күн бұрын
big is a relative term. the universe is gigantic to us. what if the simulators come from a universe that makes ours look tiny ? btw, i think the evidence is overwhelming that god exists. but just noting the comments about this universe being awfully large for someone to simulate such a size
@AllanAngusADA5 күн бұрын
And here I thought that string theory was out in never never land…. Then here come Dr Vafa dropping dark energy and dark matter on the table in the most beautiful way possible. Just wow
@philiprice69613 күн бұрын
And clearly Sean Carroll was slightly surprised by this too!
@RokyBanana5 күн бұрын
I was going to go to sleep… about 2.2 hours ago. Great episode 👍🏻
@davegrundgeiger90635 күн бұрын
Another home run from Mindscape!
@jimmybrice63605 күн бұрын
until western science starts to study near death experiences, they will forever be missing something.
@mike-Occslong5 күн бұрын
Thing is is language in general can not explain experience how in words coule you translate hearing taste sight or touch they are sensations. Do but tht logic consciousness will never be understood
@user-di7tg7qf6u5 күн бұрын
Cumrun lol
@rajeevgangal5425 күн бұрын
The next AMA likely to be full of what did Cumrun mean😅
@jeffmerklinger90675 күн бұрын
I beg you übersmart people to fix Fukushima as it is an extinction level event ❤
@jonathansaraco5 күн бұрын
Very excited to listen to this! My favourite Mindscape episodes are about physics beyond the standard model and string theory.
@MrM9705 күн бұрын
8 years at University two degrees and I'm feeling stupid 😂
@user-yv6xw7ns3o4 күн бұрын
Whew, glad I'm not the only one! 🤯💫
@jimbernard89645 күн бұрын
Excellent episode, as usual. Thank you. Can't wait to (try) read the book. I just came to say the best pop culture reference of Schrodinger I've ever seen (have there been many?) was on a 2010 episode of the Simpsons called "Moneybart". Lisa has to take over as coach of Bart's baseball team. She knows nothing about baseball but in classic Lisa style she takes a deep dive into learning as much as she can to do a great job. There is one scene she is at a desk studying up on everything baseball. She is surrounded by a pile of books. Dozens of books. The scene flashed quickly and I saw that most of the books had titles but it was too quick to read them. With DVR I rewound the scene and paused, one of the book titles was "Schrodinger's Bat". Couple things, this flashed by really quickly. Without DVR you'd never catch it. Another thing, how many people watching the Simpsons would get a "Schrodinger" reference even if they did see it? As if we needed any more proof that the Simpson's writers are genius on another level.
@phnxen3rg6665 күн бұрын
If the goal of string theorists was to create the most confusing idea know to man then they have certainly succeeded. Anything beyond that I'm not sure.
@markdavich58295 күн бұрын
It was already complicated - Like any other theory, string theory is just another attempt to explain it.
@phnxen3rg6665 күн бұрын
@@markdavich5829 If you're attempting to explain "it" in the most confusing and convoluted way possible then sure. Also what is the "it" you are referring to exactly. When if comes to many if not most of the predictions of string theories it's bold of you to assume that they exist in the first place.
@Daniel-ih4zh5 күн бұрын
The basics of string theory can be laid out in an introduction if you know undergrad physics
@Mentaculus425 күн бұрын
@@Daniel-ih4zh You mean the really, really, really basics‽ Kinda like an intro to QM, “this is an atom”, but not really. Not criticizing, but the learning curve is quite steep once pass the “Brian Greene Intro”. Even Lenny’s class at Stanford quickly escalates.
@virkotto86515 күн бұрын
😊
@joshuamartin42545 күн бұрын
Whoever says string theory doesn’t make predictions… Cumrun just predicted dark matter *might* disappear in 2 trillion years!
@hopperpeace5 күн бұрын
was cool
@test-wo6gr5 күн бұрын
String theory is a waste of time and nonsense
@twonumber225 күн бұрын
Do you have any better ideas?
@Mentaculus425 күн бұрын
Maybe String Theory is just another “abstraction” type of mathematical tool that captures some indirect aspects of reality. AND there are a lot of different ways to approach the TOE conundrum.
@jonathansaraco5 күн бұрын
Most of the people who say this are not working theoretical physicists.
@test-wo6gr4 күн бұрын
@@jonathansaraco doesnt change the veracity of my statement
@TJ_PowPow4 күн бұрын
@@jonathansaracoThe tide is starting to turn in the scientific community. The resources that have been poured into the field are not producing the expected results. It's quickly approaching academic masturbation at this point..
@ovidiulupu55755 күн бұрын
I ask if we can calculate a maximum volume of a univers, Base of planck constant and other universal constants?