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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.

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▬ Megastructure Index (Note all entries included) ▬▬▬▬▬▬▬▬▬▬
0:00 - Intro
2:06 - 101 Alphabetically-Organized Megastructures
03:23 - Active Support
04:30 - Alderson Disc
08:30 - Arcology Megatower
13:02 - Atlas Pillars
17:34 - Birch Planet
20:48 - Bishop Ring
23:54 - Black Hole Power Generator
26:36 - Buckyhabs
30:31 - Chainworlds
31:07 - Chandelier Cities
32:30 - Cube Worlds
33:24 - Cylinder Habitat
36:37 - Disc Worlds & Flat Earths
40:45 - Dyson Swarm
45:20 - Hammer Hab
46:43 - Hoop World or Donut World
48:13 - Interstellar Black Hole Highway
53:52 - Magmatter
54:50 - Matrioshka Brain
56:45 - Matrioshka Shellworld
1:01:26 - Neptunian Chainsaw
1:03:57 - Orbital Plates
1:10:08 - Planet Brain / Jupiter Brain
1:11:25 - Planet Swarm
1:13:55 - Quasar drive
1:17:14 - Relativistic Kill Missile
1:20:06 - Ringworld
1:22:19 - Rungworld
1:25:37 - Sky Cities & Cloud Cities
1:27:24 - Smoke Ring
1:32:18 - Space Farms
1:39:00 - Stellaser
1:43:58 - Topopolis
1:46:26 - Wormhole
1:53:00 - Credits

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