Why Physics Cannot Forbid Time Travel | Leonard Susskind скачать в хорошем качестве

Why Physics Cannot Forbid Time Travel | Leonard Susskind

You think TIME TRAVEL is science fiction. You think it's just a fantasy for Hollywood movies and comic books. But you are fundamentally wrong. Time travel is not FORBIDDEN by the laws of physics; it is a mathematically legitimate possibility sitting inside the same equations that run your GPS RIGHT NOW, and the fact that you think otherwise reveals how deeply we have misunderstood the nature of TIME itself. If you think the past is simply GONE, you have already missed the most unsettling truth in all of modern physics. The UNIVERSE does not care about your intuitions about cause and effect — and the equations know something about time that your brain is not built to accept. 🔑 In this video: The Block Universe: The shocking truth that Einstein's general relativity reveals — the past, present, and future ALL EXIST simultaneously as a single four-dimensional geometric object, and what you call "time passing" is simply your movement through it. Gödel's Bombshell: How Kurt Gödel — the man who BROKE mathematics — handed Einstein a solution to his own equations in 1949 that contained closed timelike curves: legal, mathematically valid paths through spacetime that loop back to the PAST. The Wormhole Time Machine: How Nobel Prize winner Kip Thorne proved that a wormhole with one end accelerated to near-light speed becomes a working TIME MACHINE — not forbidden, not impossible in principle, just terrifyingly difficult to build. Hawking's Unproven Conjecture: Why Stephen Hawking spent years arguing that quantum effects would DESTROY any time machine before it could be used — and why he could never actually prove it, and why he eventually changed his mind. The Vanishing Arrow of Time: The most disturbing fact in all of physics — the fundamental equations of quantum mechanics, general relativity, and electromagnetism contain NO arrow of time. The direction of time you experience is not a law. It is a STATISTICAL accident of entropy. Deutsch's Quantum Loop: David Deutsch's 1991 discovery that quantum information sent back through a closed timelike curve would solve computationally intractable problems in a single step — making time travel not just a transport problem, but a COMPUTATIONAL RESOURCE. 💡 The Core Lesson: Time travel is not impossible. It is probably not feasible — the engineering requirements are beyond any civilization, anywhere, ever. But "probably not feasible" and "forbidden by physics" are not the same statement, and for fifty years, the greatest minds in theoretical physics have failed to prove the stronger claim. The laws of physics look at the past and say: it exists. It's still there. In the geometry. Whether you can reach it is the question nobody has fully answered. 🧠 Watch if you: ✓ Are ready to have your intuitive understanding of TIME completely dismantled by the actual mathematics. ✓ Want to understand why the arrow of time is thermodynamic, not fundamental — and what that really implies. ✓ Love the intersection of general relativity, quantum mechanics, and the deepest unsolved mystery in all of theoretical physics. 👑 "The reason time travel is not possible — if it's not possible — is not obvious. The equations don't care about causality the way we do. The equations don't experience time. And the difference between 'probably impossible' and 'actually impossible' is the distance between a closed door and a locked one." — Leonard Susskind 🔔 Subscribe for deep dives into the geometry of spacetime, the open questions in theoretical physics, and the brutal truths hiding inside equations we think we already understand! ⚠️ DISCLAIMER: ALL content on this channel consists of completely FICTIONAL stories and educational narratives created using AI technology. All situations, conversations, and scenarios in our videos are entirely FICTIONAL and for entertainment and conceptual exploration purposes only.