Why the Universe Has No Real Size — The Truth Physicists Rarely Explain[Leonard Susskind]
Description: The universe you think you know may not exist the way you imagine. In this deep dive into cosmology and general relativity, we explore why the "93 billion light-years" figure is misleading, how spacetime expansion breaks the speed limit, why distance itself depends on your reference frame, and how the holographic principle suggests size may not be fundamental at all. From cosmic inflation to string theory's landscape of possibilities, this is a mind-expanding journey into the true, unsettling nature of reality and the limits of what we can ever know about the cosmos. Hashtags: #Physics #Universe #Cosmology #SpaceScience #Astrophysics #Einstein #StringTheory #BigBang #ScienceExplained #Cosmos Keywords: size of the universe, observable universe, cosmic inflation, general relativity explained, holographic principle, expanding universe, cosmic horizon, string theory, Big Bang cosmology, space and time physics Disclaimer: This video is for educational and informational purposes only, reflecting current scientific theories and models. Concepts discussed represent ongoing areas of research and are subject to evolving scientific understanding.
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