Mathematicians Still Can't Find This Missing Infinity

In 1873, Georg Cantor showed that infinity comes in different sizes. But his discovery left behind a strange question: could another infinity be hiding between the counting numbers and the real-number continuum? This video follows the Continuum Hypothesis from Cantor and Hilbert to Gödel and Cohen, showing how the search for one missing infinity led to something stranger: different mathematical universes where the answer can change. Topics discussed: Cantor's infinity, the Continuum Hypothesis, Hilbert's first problem, ZFC set theory, Gödel's constructible universe, Cohen forcing, and independence in mathematics. #Infinity #SetTheory #ContinuumHypothesis #Mathematics #Cantor Chapters -- 0:00 Cantor Infinity and the First Gap 1:30 Continuum Hypothesis Explained 2:46 Hilbert's First Problem 3:52 Set Theory and Russell's Paradox 5:45 Gödel and the Continuum Hypothesis 7:31 The Constructible Universe 11:40 Cohen Forcing Explained 15:28 The Hidden Landscape of Infinities I use AI for narration to eliminate accent barriers, and because I currently live in a very noisy environment, voice recording is a hassle for me. I hope that my research, script, and ideation will keep you coming back for more videos. This Video was made entirely using Manim - https://github.com/3b1b/manim Made possible by 3Blue1Brown -    / @3blue1brown   and all the Manim Community members. Music by Vincent Rubinetti Download the music on Bandcamp: https://vincerubinetti.bandcamp.com Stream the music on Spotify: https://open.spotify.com/artist/2SRhE... IMAGE CREDITS Georg Cantor thumbnail portrait: Unknown author, Georg Cantor, circa 1870, public domain / Public Domain Mark 1.0, via Wikimedia Commons: https://commons.wikimedia.org/wiki/Fi... David Hilbert: Unknown author, David Hilbert, before 1912, public domain in the United States and EU anonymous-work public-domain status noted on Commons, via Wikimedia Commons: https://commons.wikimedia.org/wiki/Fi... Ernst Zermelo: Unknown / Mondadori Publishers source, Ernst Zermelo in the 1900s, public-domain status noted on Commons, via Wikimedia Commons: https://commons.wikimedia.org/wiki/Fi... Kurt Gödel: Unknown author, Kurt Friedrich Godel, circa 1926, public-domain status noted on Commons, via Wikimedia Commons: https://commons.wikimedia.org/wiki/Fi...