An extended exploration of what science tells us about free will and consciousness in a quantum universe, including Sir Roger Penrose's theory of Orchestrated Objective Reduction.

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Episode 353a, June 30, 2024 Written, Produced & Narrated by Isaac Arthur
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator
Select imagery/video supplied by Getty Images

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Earth is immense, but we only live on a thin shell of its surface. So what if we built a planet with only that thin shell, or with several layers of them?

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Megastructures: Hollow Earth
Episode 453, June 27, 2024
Written, Narrated & Produced by: Isaac Arthur
Graphics:
Apogii.uk
Jarred Eagley
Jeremy Jozwik
Ken York YD Visual
Sergio Botero
Steve Bowers
Music Courtesy of Epidemic Sound Epidemic Sound http://epidemicsound.com/creator
Lombus,"Cosmic Soup"

A planet shaped like a cylinder might be built as novel alternative to a spherical or flat discworld.

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Utility fog is a hypothetical type mechanical matter able to perform many roles, such as turning into objects, or even sophisticated machines

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What if dinosaurs have survived the asteroid impact? Could we have seen a shared dino-mammal ecology, or even intelligent dinosaurs?
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What If The Dinosaurs Hadn't Died Off?
Episode 452; June 20, 2024
Written, Narrated & Produced by: Isaac Arthur
Editors:
Donagh Broderick
Jessica Swenson
Lukas Konecny
Music Courtesy of Epidemic Sound Epidemic Sound http://epidemicsound.com/creator

A memetic weapon is a concept that involves using memes—units of cultural information that spread from person to person—to influence, manipulate, or control the beliefs, attitudes, and behaviors of individuals or groups.

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As we reach out to the stars and settle other worlds, could we find or create ones even better for humanity than Earth?

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Paradise Planets
Episode 451a; June 16, 2024
Written, Produced & Narrated by: Isaac Arthur

Graphics:
Jeremy Jozwik
Ken York YD Visual
Udo Schroeter

Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

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The galaxy has many stars orbited by many planets, and many of these are orbited by immense icy moons, but could others have oceans on their surface, or even life?

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Oceanic Moons
Episode 451; June 13, 2024
Written, Narrated & Produced by: Isaac Arthur
Music Courtesy of Epidemic Sound Epidemic Sound http://epidemicsound.com/creator

Future civilizations may have any number of dangerous hobbies, like Skydiving from orbital altitudes.

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Orbital Ladders are a type of megastructure that allow rapid, cheap transport to space or around the planet.

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Many fear future technologies may doom our civilization, but could the pursuit of technology, and civilization itself, be what dooms humanity?
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The Fermi Paradox: Timebombs
Episode 450; June 6, 2024
Written, Produced & Narrated by: Isaac Arthur
Sound Music Courtesy of:
Epidemic Sound Epidemic Sound http://epidemicsound.com/creator
Stellardrone, "Red Giant", "Ultra Deep Field", "Cosmic Sunrise"
Sergey Cheremisinov, "Labyrinth", "Forgotten Stars"

A cosmic string is a hypothetical, narrow, and extremely dense topological defect in the fabric of space-time, theorized to have formed in the early universe.

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We all dream of a future in space, but it will take a lot of work to get there and more to make it a place we can visit and live. Of course, where there’s work to be done, there’s jobs to be had.

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Jobs in Space
Episode 449b; June 2, 2024
Written, Produced & Narrated by: Isaac Arthur
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

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Ganymede is an enormous moon, larger than any other we’ve found, including our own, and may one day be the centerpiece of wider human settlements around Jupiter.

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Colonizing Ganymede
Episode 449; May 30, 2024
Written, Produced & Narrated by: Isaac Arthur

Graphics:
Jeremy Jozwik
Kristijan Tavcar
Rapid Thrash
Sergio Botero
YD Visual

Music Courtesy of
Epidemic Sound Epidemic Sound http://epidemicsound.com/creator
Stellardrone, "Ultra Deep Field", "Red Giant", "Billions and Billions", "Cosmic Sunrise"
Lombus, "Hydrogen Sonata", "Cosmic Soup"

Rail Guns or Electromagnetic Launch systems might allow us to move cargo and resources off the Moon at a tiny fraction of Earth's Launch costs.

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One day we may settle thousands of planets and trade between them, but what would a space freighter be like, who would crew them, and what would they carry?

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Space Freighters: Cargos & Crews
Episode 448a; May 26, 2024
Written, Produced & Narrated by: Isaac Arthur

Graphics:
Jeremy Jozwik
Melänovis
Udo Schroeter
YD Visual

Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

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We think very highly of the human brain, after all, it's what lets us think about anything in the first place, but Nature is vast, and our primate brains are not the end-all and be-all of neural engineering.

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Alternative Intelligence: The Other A.I.
Episode 448; May 23, 2024
Produced & Narrated by:
Isaac Arthur
Written by: Erik Eldritch & Isaac Arthur
Editor: Darius Said

Music Courtesy of
Epidemic Sound http://epidemicsound.com/creator
Stellardrone, "Red Giant", "Ultra Deep Field", "Cosmic Sunrise"
Sergey Cheremisinov, "Labyrinth", "Forgotten Stars"
Taras Harkavyi, "Alpha and ..."
Miguel Johnson, "So Many Stars"

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Venus's has an immense inferno of an atmosphere that makes living there unthinkable, but could it be removed?

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One day our civilization may settle our whole galaxy, with mighty star empires consisting of millions if not billions of worlds, but what would the centers of such empires be like?

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Cosmic Capitals
Episode 447; May 16, 2024
Written, Produced & Narrated by:
Isaac Arthur

Editors:
Lukas Konecny

Graphics:
Jeremy Jozwik
YD Visual

Music Courtesy of
Epidemic Sound Epidemic Sound http://epidemicsound.com/creator
Stellardrone, "Red Giant", "Ultra Deep Field", "Billions and Billions"
Lombus, "Cosmic Soup", "Hydrogen Sonata"

The possibility of extending life through technology seems both tantalizingly close and forever over the horizon.

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We often imagine encountering many alien civilizations, and establishing trade and relationships with them, but what would being an alien ambassador be like?
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Alien Embassies
Episode 446a; May 12, 2024
Written, Produced & Narrated by: Isaac Arthur
Editors: Briana Brownell & Mark Warburton
Graphics:
Darth Biomech
Legiontech Studios
Sergio Botero
YD Visual

Music Courtesy of
Epidemic Sound http://epidemicsound.com/creator
Stellardrone, "Red Giant", "Ultra Deep Field"
Sergey Cheremisinov, "Labyrinth" "Forgotten Stars"
Taras Harkavyi, "Alpha and ..."
Lombus, "Cosmic Soup", "Hydrogen Sonata"

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We often look out into the galaxy and wonder where all the civilizations are, but could it be that we don't see them because they have all chosen to exist in fortress star systems, surrounded by despoiled deserts of their own making?

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The Fermi Paradox: Interdiction
Episode 446; May 9, 2024
Produced & Narrated by: Isaac Arthur
Written by: Isaac Arthur & Mark Warburton

Graphics:
LegionTech Studios
Sergio Botero
Udo Schroeter
YD Visual
Music Courtesy of:
Epidemic Sound http://epidemicsound.com/creator
Stellardrone, "Red Giant". "Ultra Deep Field"
Sergey Cheremisinov, "Labyrinth", "Forgotten Stars"

To settle the solar system we'll have to bring water to planets drier than Dune, and Comets offer one such source of water, but how do we move them where we need them?

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The Medusa Drive is a pulsed nuclear alternative to the classic Orion Drive.

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