When I was a youngster I was completely captivated by Professor Carl Sagan, and here I am having that same experience with Dr. Sabine Hossenfelder in my Senior years.

I'm so happy to live in a universe capable of producing Sabine Hossenfelder.

Rare this.. an expert giving a Ted talk..

Sabine gives outstanding lectures. Thank You Dr.Sabine

Sabine is brilliant, a whole universe of insights and analysis

Fantastic talk, Sabine Hossenfelder has introduced physics and concepts in digestible bits for folks like myself trying to learn a little bit more every day

She's wonderful! Smart, humorous, and good at teaching. Follow her science news channel. Oh, and she also creates music. 🙂

Thank you Dr. Hossenfelder for taking time out of your busy schedule to deliver this lecture. I’ve learned some great facts and ideas from your videos.

Clear presentation of somewhat difficult to comprehend ideas. Informative and educational in an interesting way. Gotta love this intelligent woman.

When I have heard her before she seemed to lack imagination. Now I see it's just that her imagination is strongly tempered by precise logical thought. That is the mark of a great mind, my respect for her has increased significantly. It is an annoying aspect of a scientific world dominated by sensors, people who do not delve into the subconscious as much, that these insights are frowned upon. I hope as her standing increases she becomes more free to express them.

Sabine straying out of the circle she is supposed to stay inside of. How poetic.

Interesting to watch you from another perspective. I watch your youtube channel religiously! And watched you with Penrose and others in discussions. I always learn something and love your, yes, strange humor!

11:26 I find the idea of a thinking universe on a large scale interesting and I hadn't known before that physicists have started to think about it. However, what I thought she would say, and this would have appeared rather self-evident to me, is that we know already that the universe can think through us. This wouldn't mean that the thinking is everywhere (in the sense of the idea that the whole universe can think), but as Sabine said herself we are part of the same universe, so apparently at least parts of it can think? So the question for me would be whether there is, in addition to the thinking that the universe already does, further thinking: among galaxies, tiny wormholes, etc.

The world needs more Sabine!

Physics can discover the laws of our universe and how we can use them. That is the limit of physics. It can not explain what happened before the big bang. It can not explain how psychics can communicate with the dead. It can not explain how it is that some people can see the future. Physics can not develop equations to explain these kinds of things. Sabine Hossenfelder makes physics so interesting and explains things so well. I think she's the best!

It is always a pleasure to listen to Sabine Hossenfelder's thoughts. They are easy to grasp and to say in her words 'ascientific', at least for me... I have no evidence against nor do I have evidence supporting the idea behind her thoughts.

So good to have this content available, science is cool.

Sabine, thank you for being so complete and clear!

The best science communicator of our age? It is rare to explain the most complex ideas in a way that is completely understandable.

11:31 I agree with that from principles, I'm a computing scientist and its nice to hear from physicists that we converge on that.

Love her honesty

Sabine is a Treasure.

I am happy to inform you that Sabine exists in my subjective experience of the universe.

There are some recorded talks like this, which after ending deserves clapping👏👏 excellent!

Very interesting talk. Thanks for making this available.

In a way, she is giving motivation. Just like how dark humor can be therapeutic for a individual; being able to be self aware enough to realize when certain things get off track and it can motivate you/anyone to attempt to look at these things and try and find a new perspective/approach to solve a problem. The best inventors, philosophers, artists seem to be able to be comfortable with facing things and learning to harness the ability of how you observe things as a tool and through perspective experimenting, you can sometimes stumble upon new methods/manner's on how to solve problems in ways that others didn't notice/see/or understand. (Just like how Einstein had the ability to get lost in hypothetical thought and imagine different perspectives and then it stumbled upon his path towards learning about light/energy/physics etc.) That came from Einstein taking a category that previously was in a state of limbo, but he was willing to look at it and see if he could find anything else out about it. So if you get demotivated, or down, try and remember that even things we think we fully understand; have the total possibility that you can look at it/observe it in a new light that others haven't and totally find a new layer of complexity or depth to a topic. So even if we are faced with a lot of difficult situations, roadblock's, the best thing is the universe is full of amazing intracity so the chance of further understanding the world around us is profoundly possible and to me that's very motivational and Nature itself some how seems to have a way of always keeping that inner child like curiosity alive with-in my Life.

I’m shocked . I came on here because I have listened to Sabine for over a year now. I actually alway wondered what if the universe itself is a brain trying to understand itself , and it is alive but in a way our brain cant comprehend. The same way we are trying to understand our existence. Now I don’t feel as crazy.

I don’t know if it’s the same experience with others. Being taught and given empirical meaning to what’s being taught, gives me liking and an opportunity to better interpret “stuff” and even maybe make advancement on them. I’m usually lost if I cannot pair what is taught with empirical meaning. This is why I like Sabine. She dangles these two so well. In undergraduate physics, I didn’t understand geometrical meanings of the cones in special relativity. And here she opens up so well to it.

Nice! Need to listen to this again, to remember some points that I noticed and share this video with some questions here and there...

Totally absorbing. Well thought out....

Saline 's just awesome, totally buzzing about her idea that the universe thinks

Sabine, you rock girl! 👍

Excellent talk. Thanks Sabine. > I am uncertain if "Can the universe think?" is the right question as it implies a certain human characteristic. I am more toward "Aware" but in an abstract non human way. All information across the universe being directly connected in the now moment, and that universal connection of information as a combined set forms a kind of non human knowledge. To use a human analogy, the universe knows the entirety of itself in any now moment. This is not human like though.

Ah, Sabine of the Dry Humor. A jewel in every sense. I'm subscribed on YT, but found this on my own. Lucky.

Wow, this was really close to where I live and I had no idea. It'd have been great to go along and watch one of my favourite science people on KZfaq, in real life.

Read her new book, 'Existential Physics',meanwhile, this lecture is about, recommend it very much, great to hear her talking life about it here.😊

Yes, that guy again 😆 Sabine must be so proud he was German

Sabine deserves better lighting

i love the definiton of ascientific and the distinction to unscietific. if u dont mind, i will use if someone askes me about the multiverse idea

Sabine Is such an underrated physics personality

I’ve been following sabine since 2020. Biggest fan of her 😍

Wow! That was amazing!

13:26 that means spacetime isn't the most basic property, information is, if two particles are in the same space that only means they are strongly correlated in a information point of view, and the biggest correlation between specific particles is what creates gravity, not the spacetime. Which is why theories can't be reconciled. one of them is basically missing "hidden variables". With general relativity its too easy to confuse an useful abstraction with the real thing itself. The real thing is information, not the space that information represents. Information can be duplicated, and information don't occupy space, but information can correlate with itself, that creates Shannon entropy, and that creates the effects of "gravity". Yes, I subscribe to the information-theoretic foundations of physics (for obvious reasons, I'm a computing scientist).

13:00: "That they have quantum properties means among other things that they can be in two places at the same time. We also know that those particles have masses, and mass generates a gravitational pull, which brings up the question: if you have a particle that's in two places at the same time, where does the gravitational pull go?" - Interesting point that I've not thought about before. The obvious answer would be that gravity behaves like the particle's electric charge. If a charged particle interacts with another charged particle in some observable way, then that constitutes an observation and the wave function collapses; the particle is no longer in two places at once (or rather, the amplitude of its probability distribution no longer has two peaks at different points in space). So with gravity: if the particle exchanges a graviton with another particle, then again the wave function collapses. But it's a long time since I studied quantum mechanics (and not very successfully even then), so it's probably not that at all.

Love her!

Love Sabine. For the algorithm

She’s so cute how she’s nervous 😊 I hear it in her voice since I had to also do a lecture and had the same “chopped” voice lol

Congrats Sabine!!!

Shared by free so wonderful!

The arrow of time points forward in time because of the wave function collapse. Because causality has a speed limit every point in space sees itself as the closest to the present moment. When we look out into the universe, we see the past which is made of particles (GR). When we try to look at smaller and smaller sizes and distances, we are actually looking closer and closer to the present moment (QM). The wave property of particles appears when we start looking into the future of that particle. It is a probability wave because the future is probabilistic. Wave function collapse happens when we bring a particle into the present/past. GR is making measurements in the predictable past. QM is trying to make measurements of the probabilistic future.

Oh I love this lady! She's amazing ❤️

Physics might be the most powerful tool we have to make sense of our own existence but it is not powerful enough. Even if physics came up with a perfectly complete set of theories that precisely describe existence and for which no violations could be found we would still be asking "why universe is that way?" The answer to that question seems to be important for making sense of existence yet it is a question which no answer could completely satisfy.

In Edgar Cayce's readings he states things that agree with physics observations. For example are we in a multiverse? It is fascinating!

Sabine ROCKS!!!!!

Eres un científica increíble ! Me has hecho cambiar la manera en que veo la ciencia❤

Interesting and thoughtful! I think what I heard you imply is that since the concept of a thinking universe is compatible with what we know, though there's no evidence , one might say it takes faith to believe in it. Personally, I can't argue against having faith in that which is compatible yet unprovable. So, why not faith in a creator outside the universe?

This point is very interesting: that we always see everything as it was in the past because of finet speed of light. We can never know the present, no matter how tiny a fraction of second the time lag is. Reality we experience is always in the past, never in the present. Raises interesting philosophical questions.

Wonderful. Thanks Sabine. Existence of the block universe I always found chilling given how dark human history as we know it has been. Are those people stuck suffering for all enternity?

I find such subject matters intriguing sadly there is no one I know to have conversations with about such deep-thinking subjects in person. It is refreshing to know there are like-minded people just so very few and the numbers are growing fewer as our education systems crumbles to third world country volcano god mentality. Great Ted episode Doctor Hossenfelder is an awesome speaker I do hope you have her do more!

There are many things in physics we have yet to understand, things we have yet to change our minds about, Things such as consciousness and spiritual physics.

This talk reminds me of the book "Flatland".

Very Cool!

Dear Sabine (I hope you read the comments), I like your work a lot! I would appreciate if you would also tell people that what you call "compatible" indeed means that our philosophical speculations are at least 50% about our own theories and not about what we call "reality". In my eyes all our theories are "compatible theories". As the observer problem clearly shows, the reality itself is and will always be beyond our knowledge. I think the works of Donald Hoffman show this very impressively.

I LOVE Sabine!!!!!!!! :D

She gives us matter to dream about being a dream; thanks for this voluptuous idea :')

I've wondered if the universe was like a brain, with all those interconnecting filaments, made of galaxies, that look like the neural networks of a brain. Then I realized, that everything my consciousness interacts with comes from my brain, and when I interact with my environment, I'm not really interacting with it, but with a copy of my environment that lives in my brain. I'm probably an imperfect copier, who copies the universe and tries to fit it into my brain. Then we make A.I. and we make copies of copies of the universe, and so on and so forth, like a fractal or an infinite mirror.

We are absolutely not made of matter, matter is created inside us as infinite beings.

It amazes me how much her ability to speak English has grown over the years since she first started appearing on my KZfaq streams. Nowadays you can clearly hear a person that speaks and possibly even dreams English on a daily rate. Few years ago it was very typical heavily German inflected English. Makes me wonder if she can already make Germans believe she's not German.

I have always thought that we only see past events, not only the speed of light but the speed in which we process the images.

experience Dr. Sabine Hossenfelder

Queen

Go Sabine!!!

Now I know the difference between scientific, unscientific and ascientific. Thankyou Sabine.

Thanks!

Excellent lecture, all the physics and none of the gobbledygook. A++

So smart

One of my fav girl nerds!! Let the future rolllllll

Thank you Sabine

Brilliant! Dr Hossenfelder is such a good speaker! Really interesting subject matter too and presented in a very digestible form.

There are a lot of parts of the universe who show no signs of logical thinking. But I agree. If even one human can think then the Universe can as well. The only debate will be if the human is the part of the Universe that can think, or there are bigger (or smaller) structures capable of thinking.

I know heaps about this topic, it's like the same as exploring the universe with your mind using imagination, imagination is the best way to explore using logical reasoning, the more you practice it with wisdom the. Better you get at it , and humanity hasn't a measure for it yet and it's measure in reason is larger than the universe and multi universes, , the imagination Travers faster than the speed of light and in our brains too, imagine stating a sentence that has multiple meanings that all describe something in great detail,

thought provoking.

is entanglement needed for any object or matter to have quantum properties?

SoL is not the main reason we do not live in NOW. The delay in processing the signal is. Reception of event via senses, transmission of impulse along nerves, processing in the brain, presentation of dataset to the 'I' who is watching it all.

Watching her videos I feel like a curious elementary school student again.

Way to go Sabine.

does a quantum wave (of particle or any matter) with probability distribution of particle / matter have gravity?

How do we know that we aren't already constantly jumping between universes?

Her KZfaq channel is great too, good info and humour

Sabine, you are brilliant and so clear; two qualities that are rarely compatible. You are so accomplished and so humble; again a rarity. And finally your mind reaches so deep into the unknowable and yet your feet are firmly planted on the ground. You are kind of physics miracle. I'm not trying to compliment you just letting you know how rare you are, and how much you are appreciated.

_My_ past present and future don't exist simultaneously in my own reference frame, only in some combinations of other reference frames. No _individual_ reference frame would perceive them _all_ as simultaneous, excepting the reference frames of some photons, were they capable of perception.

A role model for all women!

could causation be the present now, with perceptions of that causation varying as described by speed of light and special relativity?

Well done Sabine

💙

Wish i could give more thumbs up...

🔥🔥❤️❤️

The general audience is unaware of Sabine's important work on superdeterminism.

I love her proper pronunciation of Einstein.

Just because a system would have an unbearably low frequency for our mortal standards, doesn't mean it can't think, just that if it does the timescales involved are much larger. Unless the expansion of the universe rules this out someway I guess?