What Space-Time Really Is | Leonard Susskind

Описание: Space and time feel like the basic stage on which reality unfolds. Everything appears to exist somewhere, at some moment, moving through a four-dimensional fabric we call spacetime. This picture is so familiar that it feels unquestionable.

But modern physics tells a very different story.

In this video, we explore what spacetime really is — and why it may not be fundamental at all. Drawing on ideas associated with Leonard Susskind, this explanation goes beyond the traditional view of spacetime as a smooth, continuous background.

Black holes, quantum mechanics, and information theory have forced physicists to rethink the nature of space and time. In many modern frameworks, spacetime emerges from more fundamental ingredients, such as quantum information and entanglement. It behaves less like a container and more like a derived description.

This video offers an intuitive, equation-free explanation of how spacetime arises, why it breaks down at extreme scales, and why our everyday picture of it is deeply misleading. Rather than treating spacetime as the foundation of reality, physics increasingly treats it as a consequence.

The goal of this documentary-style exploration is not to simplify spacetime, but to clarify what physics actually says — and why the universe may be stranger than our intuition allows.