How Decoherence Splits The Quantum Multiverse

PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE↓ More info below ↓Uploaded 24-02-20Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetimeSign up for the mailing list to get episode notifications and hear special announcements!https://tinyurl.com/yx9cusk5Check out the Space Time Merch Storehttps://pbsspacetime.com/Why is it that we can see these multiple histories play out on the quantum scale, and why do lose sight of them on our macroscopic scale? Many physicists believe that the answer lies in a process known as quantum decoherence.Hosted by Matt O'DowdWritten by Matt O'DowdGraphics by Leonardo Scholzer, Yago Ballarini, and Pedro OsinskiDirected by: Andrew KornhaberExecutive Producers: Eric Brown and Andrew KornhaberEnd Credits Music by J.R.S. Schattenberg: https://www.youtube.com/channel/UCRl6-nb4iOnsij-vnpAjp0QDoes conscious observation of a quantum system cause the wavefunction to collapse? The upshot is that more and more physicists think that consciousness - and even measurement - doesn’t directly cause wavefunction collapse. In fact probably there IS no clear Heisenberg cut. The collapse itself may be an illusion, and the alternate histories that the wavefunction represents may continue forever. The question then becomes: why is it that we can see these multiple histories play out on the quantum scale, and why do lose sight of them on our macroscopic scale? Many physicists believe that the answer lies in a process known as quantum decoherence.Thanks to our Patreon Supporters!Big Bang SupportersAlexander TamasDavid BarnholdtDavid NicklasFabrice EapJuan BenetMorgan HoughQuasar SupportersChristina OegrenMark HeisingVinnie FalcoHypernova SupporterChuck ZegarDanton SpiveyDonal BotkinEdmund FokschanerHank SJohn HofmannJohn PollockJohn R.