In the future humanity may build enormous structures, feats of mega-engineering that may rival planets or even be of greater scope. This episode catalogs roughly 100 major types of Megastructure, from those that are cities in space to those that rival galaxies.

Sign up for a Curiosity Stream subscription and also get a free Nebula subscription (the streaming platform built by creators) here: https://curiositystream.com/isaacarthur
Watch the Video Version: https://youtu.be/1xt13dn74wc
Visit our Website: http://www.isaacarthur.net
Support us on Patreon: https://www.patreon.com/IsaacArthur
Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur
Facebook Group: https://www.facebook.com/groups/1583992725237264/
Reddit: https://www.reddit.com/r/IsaacArthur/
Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.
SFIA Discord Server: https://discord.gg/53GAShE

Credits:
The Megastructure Compendium
Science & Futurism with Isaac Arthur
Episode 346, June 9, 2022
Written & Produced by Isaac Arthur
Narrated by Isaac Arthur & Sarah Fowler Arthur

Editors:
David McFarlane
Graeme Kilshaw
Sarah Fowler Arthur
Sig’unnr’s Deluge

Cover Art:
Jakub Grygier https://www.artstation.com/jakub_grygier

Graphics:
Bryan Versteeg
Fishy Tree
Jarred Eagley
Jeremy Jozwik https://www.artstation.com/zeuxis_of_losdiajana
Justin Dixon
Katie Byrne
Ken York Ken York of YD Visual https://www.facebook.com/YDVisual/
Mafic Studios
Mike Munt (Apogii)
Rapid Thrash
Sergio Botero https://www.artstation.com/sboterod?fref=gcJarred Eagley
Stephen Huck
Steve Bowers
Udo Schroeter

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

The Megastructure Compendium (Narration Only)

Our monthly livestream Q&A session. Join us on New Year's Eve in the Afternoon, at 4pm EST, Saturday, December 31, and get your questions about the channel and episodes on chat to be answered! 

Join Nebula: https://go.nebula.tv/isaacarthur
Support the stream: https://streamlabs.com/isaacarthur
Visit our Website: https://www.isaacarthur.net
SFIA Discord Server: https://discord.gg/53GAShE
Support us on Patreon: https://www.patreon.com/IsaacArthur
Facebook Group: https://www.facebook.com/groups/1583992725237264/
Reddit: https://www.reddit.com/r/IsaacArthur/
Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

SFIA Monthly Livestream 50:  December 31, 2022

The Omega Point Cosmological Theory argues that it may be possible to continue existing until the End of Time itself.

Sign up for a Curiosity Stream subscription and also get a free Nebula subscription (the streaming platform built by creators) here: https://curiositystream.com/isaacarthur
Watch the Video Version: https://youtu.be/eOxHRFN4rs0
Visit our Website: http://www.isaacarthur.net
Join Nebula: https://nebula.tv/isaacarthur
Support us on Patreon: https://www.patreon.com/IsaacArthur
Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur
Facebook Group: https://www.facebook.com/groups/1583992725237264/
Reddit: https://www.reddit.com/r/IsaacArthur/
Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.
SFIA Discord Server: https://discord.gg/53GAShE

Credits:
The Omega Point
Science & Futurism with Isaac Arthur
Episode 378, January 19, 2023
Written, Produced & Narrated by Isaac Arthur

Editors:
Briana Brownell
Konstantin Sokerin

Music Courtesy of Epidemic Sound http://epidemicsound.com/creator
Markus Junnikkala, "Hail the Victorious Dead", "A Memory of Earth"
Stellardrone, "Red Giant", "Ultra Deep Field"
Sergey Cheremisinov, "Labyrinth"

The Omega Point

Once we journey out to the stars, we will need to forge new worlds to live on. Choosing the best terraforming techniques for each planet and star system will be vital to surviving on alien worlds.
Check out SFIA's Bonus Content: https://go.nebula.tv/isaacarthur

Visit our Website: http://www.isaacarthur.net
Support us on Patreon: https://www.patreon.com/IsaacArthur
Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur
Facebook Group: https://www.facebook.com/groups/1583992725237264/
Reddit: https://www.reddit.com/r/IsaacArthur/
Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.
SFIA Discord Server: https://discord.gg/53GAShE

Credits:
Planetary Terraforming Strategies
Science & Futurism with Isaac Arthur
Episode 380, February 2, 2023
Written, Produced & Narrated by Isaac Arthur

Editors:
Briana Brownell
Konstantin Sokerin

Music Courtesy of Epidemic Sound http://epidemicsound.com/creator
Markus Junnikkala, "We Roam the Stars", "A Memory of Earth"
Stellardrone, "Red Giant", "Ultra Deep Field"
Sergey Cheremisinov, "Labyrinth", "Forgotten Stars"
Taras Harkavyi, "Alpha and..."
Reign Pagaran, "Titan's Waves", "Imminent"

Planetary Terraforming Strategies

Many speculate that the world isn't real, that it a dream or simulation, but if it is, how to we get out of it or control it?

To get started planning a career that works on one of the world’s most pressing problems, sign up now at https://80000hours.org/isaacarthur
George Hoyt Video: https://www.youtube.com/watch?v=ESXOAJRdcwQ
Roman Yampolskiy Paper: https://www.researchgate.net/publication/364811408_How_to_Hack_the_Simulation

Visit our Website: http://www.isaacarthur.net
Join Nebula: https://go.nebula.tv/isaacarthur
Support us on Patreon: https://www.patreon.com/IsaacArthur
Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur
Facebook Group: https://www.facebook.com/groups/1583992725237264/
Reddit: https://www.reddit.com/r/IsaacArthur/
Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.
SFIA Discord Server: https://discord.gg/53GAShE

Credits:
Hacking The Simulation 
Episode 387, March 23, 2023
Produced & Narrated by:
Isaac Arthur

Written by:
Isaac Arthur
Mikael Lampiranta

Editors:
Mikael Lampiranta
Kari Alatolo
Luis Jorge de Luna
Lukas Konecny
xXxx
David McFarlane
Briana Brownell

Hacking The Simulation (Narration Only)

Cities in the future will need to be increasingly clever in how they operate, by utilizing more data collection, automation, and artificial intelligence to serve its citizens and businesses. 
To get started planning a career that works on one of the world’s most pressing problems, sign up now at https://80000hours.org/isaacarthur

Visit our Website: http://www.isaacarthur.net
Join Nebula: https://go.nebula.tv/isaacarthur
Support us on Patreon: https://www.patreon.com/IsaacArthur
Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur
Facebook Group: https://www.facebook.com/groups/1583992725237264/
Reddit: https://www.reddit.com/r/IsaacArthur/
Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.
SFIA Discord Server: https://discord.gg/53GAShE

Credits:
Smart Cities
Science & Futurism with Isaac Arthur
Episode 392, April 27, 2023
Written, Produced & Narrated by Isaac Arthur

Editors:
Briana Brownell
David McFarlane

Smart Cities (Narration Only)

Could there be universes with more than 3 Dimensions? And if so, could life exist there?
Checkout Keysight World Innovate: https://keysig.ht/rX9blU

Visit our Website: http://www.isaacarthur.net
Join Nebula: https://go.nebula.tv/isaacarthur
Support us on Patreon: https://www.patreon.com/IsaacArthur
Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur
Facebook Group: https://www.facebook.com/groups/1583992725237264/
Reddit: https://www.reddit.com/r/IsaacArthur/
Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.
SFIA Discord Server: https://discord.gg/53GAShE

Credits:
Alien Civilizations: Higher Dimensional Aliens
Science & Futurism with Isaac Arthur
Episode 398a, June 11, 2023
Written, Produced & Narrated by Isaac Arthur

Editors:
Briana Brownell
David McFarlane

Higher Dimensional Aliens (Narration Only)

Comets have awed, amazed, and even terrified humanity for thousands of years, with many believing they heralded the end of the world, but could they be the key to reaching and creating new worlds?
🌏 Get Exclusive NordVPN deal here ➼ https://nordvpn.com/isaacarthur
It’s risk-free with Nord’s 30-day money-back guarantee! ✌

Sign the New Horizons Petition: https://chng.it/DPQ6cSWGk8
NSS Space Forum Registration: https://us02web.zoom.us/webinar/register/WN_7ZU_C6VHSkyoS91zVtPKkg#/registration

Visit our Website: http://www.isaacarthur.net
Join Nebula: https://go.nebula.tv/isaacarthur
Support us on Patreon: https://www.patreon.com/IsaacArthur
Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur
Facebook Group: https://www.facebook.com/groups/1583992725237264/
Reddit: https://www.reddit.com/r/IsaacArthur/
Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.
SFIA Discord Server: https://discord.gg/53GAShE

Credits:
Comet Mining
Science & Futurism with Isaac Arthur
Episode 408, August 17, 2023
Written, Produced & Narrated by Isaac Arthur

Music Courtesy of: 
Epidemic Sound http://epidemicsound.com/creator
Stellardrone, "Red Giant", "Between the Rings"
Sergey Cheremisinov, "Labyrinth", Forgotten Stars"
Miguel Johsnon, "So Many Stars"
Taras Karkavyi, "Alpha and ..."

Comet Mining

The galaxy is an immense and mysterious place we may one day explore and settle, but for now, we have only one planet, and the galaxy holds many dangers, so what can we do to defend Earth?

Start Forging New Worlds: https://www.worldanvil.com/isaac-arthur 

Visit our Website: http://www.isaacarthur.net
Join Nebula: https://go.nebula.tv/isaacarthur
Support us on Patreon: https://www.patreon.com/IsaacArthur
Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur
Facebook Group: https://www.facebook.com/groups/1583992725237264/
Reddit: https://www.reddit.com/r/IsaacArthur/
Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.
SFIA Discord Server: https://discord.gg/53GAShE

Credits:
Defending Earth 
Episode 442; April 11, 2024 
Produced, Written & Narrated by: Isaac Arthur

Editors:
Jon Dagle
Rod Pyle
Dale Skran

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

Defending Earth (Narration Only)

We continue our look at possible explanations why life may be very rare in the Universe by examining our planet itself, and looking at which of its characteristic might be important to intelligence developing and how improbable those traits are for a given planet in a given solar system.

Watch the video version: https://youtu.be/oIva_60l3ww

Visit our Website: http://www.isaacarthur.net
Join the Facebook Group: https://www.facebook.com/groups/1583992725237264/
Support the Channel on Patreon: https://www.patreon.com/IsaacArthur
Visit the sub-reddit: https://www.reddit.com/r/IsaacArthur/
Cover Art by Jakub Grygier: https://www.artstation.com/artist/jakub_grygier

Graphics Team:
Edward Nardella
Jarred Eagley
Justin Dixon
Katie Byrne
Misho Yordanov
Murat Mamkegh
Pierre Demet
Sergio Botero
Stefan Blandin

Script Editing:
Andy Popescu
Connor Hogan
Edward Nardella
Eustratius Graham
Gregory Leal
Jefferson Eagley
Luca de Rosa
Michael Gusevsky
Mitch Armstrong
MolbOrg
Naomi Kern
Philip Baldock
Sigmund Kopperud
Steve Cardon
Tiffany Penner

Fermi Paradox Great Filters: Rare Earth (Narration Only)

A trip deep into the far future, to the End of Earth
Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/
For most of human history, the end of Earth, the Universe, and Time itself were all identical, now we know the world will end in 4 billion years, long before the Universe begins to wind down. Today we will ask how we can extend that, and keep Earth around for far longer.

Watch the video version: https://youtu.be/p58yFf7aZsM

Visit our Website: http://www.isaacarthur.net
Join the Facebook Group: https://www.facebook.com/groups/1583992725237264/
Support the Channel on Patreon: https://www.patreon.com/IsaacArthur
To help us grow your SFIA community, follow https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.
Visit the sub-reddit: https://www.reddit.com/r/IsaacArthur/
Cover Art by Jakub Grygier: https://www.artstation.com/artist/jakub_grygier

Script Editing
Edward Nardella
Keith Blockus
Mark Warburton
Matthew Acker
MolbOrg
N Kern
Sigmund Kopperud (Wicked Woxel)

Graphics Team:
Edward Nardella
Jeremy Jozwik
Jarred Eagley
Justin Dixon
Jeremy Jozwik
Katie Byrne
Kris Holland of Mafic Stufios: www.maficstudios.com
Luuk Warringa
Mihail Yordanov
Murat Mamkegh
Nick Talmers Nieuwoudt
Pierre Demet
Sergio Botero: https://www.artstation.com/sboterod?fref=gc
Stefan Blandin

Music Supervisor
Luca De Rosa

Music:
Markus Junnikkala, "Always Tell me the odds"
Sergey Cheremisinov, "Back to Home"
Kai Engel, "Soli"
Ayreon, "Frequency Modulation"
Ayreon, "String Theory"
Ayreon, "The Theory of Everything, Part 3"
Dexter Britain, "After The Week I've Had"
Markus Junnikkala, "A Fleet Behind The Moon"
NJ Mandavilel, "The Resting Vale"
Ayreon, "Age Of Shadows"
Lombus, "Hydrogen Sonata"
Kevin MacLeod, "Spacial Winds"
Brandon Liew, "Into the Storm"

Planetary Terraforming Strategies

Isaac Arthur

Related tracks