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We live inside three dimensions and assume that’s all there is. When Einstein wrote down gravity, he used four. When Kaluza tried to add electromagnetism, he needed five. By the time string theory walked in trying to unify everything, the count was eleven. Every time physics got closer to...

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Physicist Avi Loeb just told me that futuristic technology could enable humanity to travel “faster than the speed of light.” But we would have to move beyond the three dimensions we are familiar with. And he speculated that advanced alien civilizations could already have access to these dimensions. You need to hear his fascinating theory: “Think about living on the surface of a balloon.” “That is two dimensional.” “You might not be aware that there is a third dimension because you are just living on the surface of that balloon.” “If there is another being that is capable of taking advantage of the third dimension, then that being will cross the distance between two points on the surface of the balloon faster than you can imagine.” “Because the travel between the two points can go through the third dimension that connects the two points—not necessarily on the curved surface of the balloon.” “So there are, in principle, possibilities of navigating in more than the dimensions that we are familiar with.” “We are familiar with three spatial dimensions plus time.” “If there are more than three and there is a technological way of taking advantage of those … objects will appear and disappear in ways that we cannot understand.” “Einstein’s theory of relativity states that no material object can move faster than light.” “However, if there are extra dimensions, you might actually travel faster than light in the three dimensions, even though you’re traveling less than the speed of light in the extra dimensions.”

Jan Jekielek

31,984 views • 7 months ago

Are we getting closer to understanding the universe or realising how little we actually know? Today’s guest Dr Michio Kaku has spent more than 70 years studying the universe, and he believes we may be closer than ever to discovering a “theory of everything”. Dr Michio is a theoretical physicist, futurist and one of the scientists behind String Theory. His work attempts to answer one of the biggest questions humans have ever asked: what is the universe actually made of?? Michio has this rare ability to zoom out and make you realise how small we are, whilst also making you feel hopeful about what humanity could become. What I learned about Michio is that he doesn’t pretend to have certainty about everything. He’s comfortable sitting in the unknown whilst still pushing relentlessly towards understanding it. The truth is, most of us are so consumed by day-to-day life that we rarely stop and ask bigger questions about where we came from or where we’re going. We spoke about: - How the universe actually works? - Is immortality possible? - Are parallel universes real?! - What happens if humanity becomes advanced enough to leave Earth… - The real reason scientists are taking UFOs/UAPs more seriously. I was going through his videos as research before we sat down, and so many of the top comments are people saying that he’s the reason they worked harder in their physics classes - they say he’s the person that made them more curious. I think that’s such a wonderful thing, because as he said at the start our conversation, physics is the basis of everything and the more we understand, the better the lives we could live. The reason conversations like this fascinate people is because all of us are trying to understand where we came from and what all of this means. I expected to learn about physics. I didn’t expect to leave questioning humanity, time and consciousness itself. Whether you agree with every theory or not, listening to someone think this deeply about the future of humanity is incredibly valuable

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Could there be a real possibility that everything you think is reality is actually a simulation? Professor Brian Greene has spent decades trying to understand the true nature of our universe and he says the argument that we could be living inside one actually holds up. Brian is a theoretical physicist at Columbia University and one of the world’s best-known thinkers on string theory, space, time and the fundamental nature of reality. By 12 years old, Brian had already exhausted the maths curriculum at his high school. He has now spent decades trying to answer a question that sounds simple but might be the biggest question we can ask: Why are we here? Brian has the ability to take ideas that should feel completely inaccessible and make you feel like you can actually understand them. We discussed things like: - Why Brian has high confidence that humans do not have free will - How travelling hundreds of years into the future is allowed by the laws of physics - Why he believes AI will eventually become conscious - Whether an infinite universe means there could be another version of you somewhere out there - What actually happens when the universe eventually reaches its end He explained that we’re living in an incredibly small, rare window in the history of the universe. A tiny moment where conscious beings are actually here to look around, fall in love, build things and understand the world they’re standing in. Because eventually, the stars will burn out. Matter (atoms, planets) will begin to disappear. Even black holes are predicted to evaporate into nothing. On paper, it sounds bleak. But listening to him, I felt the exact opposite. That’s what I loved about speaking to Brian. These huge ideas somehow end up feeling very personal. Out now on all platforms. ❤️👊🏾

Steven Bartlett

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.Naval: Every human is a lottery ticket bet on the future of the species. One of the things that you really learn when you read David Deutsch’s theories and you authenticate them for yourself is you realize humans are universal explainers. That means everything that we know in the universe follows the laws of physics, and there’s no reason to believe otherwise. If you think otherwise, then please present your better theory that explains the world. If you can’t do that, then you have to go with the laws of physics. Well, the laws of physics are completely computable. They can fit inside a Turing machine or computer, and a computer can simulate the laws of physics with arbitrary accuracy, limited only by the specific power of that computer. If you increase the power of that computer, you can simulate them more accurately. So humans already simulate—in our minds we simulate—and through our computers we simulate the weather, we simulate quasars, we even simulate human systems. We simulate the economy. We simulate all kinds of things. So anything that can be understood, we can understand in our minds. This is something the AGI people get wrong when they talk about superintelligence. There is nothing out there that can understand something fundamentally that we can’t understand. It might be faster at it, it might have more compute, it might have more memory, but there’s no concept that it can understand that we can’t ourselves understand. So we are maximal universal explainers. That means every human is capable of unbounded creativity. Anyone could be the next Einstein or Fermi or Elon Musk or Jeff Bezos or Jonas Salk or whatever. So we can create anything. And if we can create anything, every human is a lottery ticket bet on the future of the species.

Arjun Khemani

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Eric Weinstein just nuked our current understanding of physics: "Spacetime is for Pussies" 😱 The new physics are Boom, Vroom & Zoom" “There is no realistic way out of the escape room that is our solar system.” Too many of us on one sphere. The problem is not land. It is the atmosphere. Pathogens, radiation, and pollution do not respect borders, and we still have no working property rights in the sky. There is no good nearby terrestrial surface. Two hostile options at best. The nearest star is four light years away. If you think in spacetime terms, you are not going there. There are no generation ships. You are not uploading to silica. You are not re evolving from tardigrades. “All that stuff is just dumb.” Wormholes and 0.99c are a dead conversation. “Nobody’s excited anymore.” “Elon was never going to Mars. That didn’t make any sense in his lifetime.” People cannot think outside the wormhole and 0.99c box because Einstein sits in the head as the boss. “Just think of him as the jailer and you’ve got to make a jailbreak.” Spacetime is probably not what you want to engineer. You want the successor to spacetime. After Los Alamos, physics may not be safe to do in the open. Quantum gravity, string theory, and M theory are what he calls Nerf physics: Not Even Remotely Physics. Safe enough to share with rivals. The culmination of human theory about base reality “stagnated abruptly and mysteriously in 1973” at the Einstein Hilbert Lagrangian. Otherwise, he says, “we’re going to die here in short order.” The toys are too good. Thermonuclear weapons have not been used in anger since 1952. That streak will not last forever. The puzzle is not a faster rocket. It is reconceptualizing what we have wrong.
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Eric Weinstein just nuked our current understanding of physics: "Spacetime is for Pussies" 😱 The new physics are Boom, Vroom & Zoom" “There is no realistic way out of the escape room that is our solar system.” Too many of us on one sphere. The problem is not land. It is the atmosphere. Pathogens, radiation, and pollution do not respect borders, and we still have no working property rights in the sky. There is no good nearby terrestrial surface. Two hostile options at best. The nearest star is four light years away. If you think in spacetime terms, you are not going there. There are no generation ships. You are not uploading to silica. You are not re evolving from tardigrades. “All that stuff is just dumb.” Wormholes and 0.99c are a dead conversation. “Nobody’s excited anymore.” “Elon was never going to Mars. That didn’t make any sense in his lifetime.” People cannot think outside the wormhole and 0.99c box because Einstein sits in the head as the boss. “Just think of him as the jailer and you’ve got to make a jailbreak.” Spacetime is probably not what you want to engineer. You want the successor to spacetime. After Los Alamos, physics may not be safe to do in the open. Quantum gravity, string theory, and M theory are what he calls Nerf physics: Not Even Remotely Physics. Safe enough to share with rivals. The culmination of human theory about base reality “stagnated abruptly and mysteriously in 1973” at the Einstein Hilbert Lagrangian. Otherwise, he says, “we’re going to die here in short order.” The toys are too good. Thermonuclear weapons have not been used in anger since 1952. That streak will not last forever. The puzzle is not a faster rocket. It is reconceptualizing what we have wrong.

Interstellar

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