Science & Futurism With Isaac Arthur

Imagine a world stretched along a single, endless river inside a colossal space megastructure. Explore the fascinating concept of the Topopolis, a futuristic habitat billions of miles long, where humanity might thrive in a sprawling civilization bound by physics, engineering, and imagination.Watch my exclusive video Big Alien Theory https://nebula.tv/videos/isaacarthur-big-alien-theoryGet Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthurGet a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isaacarthurUse the link gift.nebula.tv/isaacarthur to give a year of Nebula to a friend for just $30.Visit our Website: http://www.isaacarthur.netJoin Nebula: https://go.nebula.tv/isaacarthurSupport us on Patreon: https://www.patreon.com/IsaacArthurSupport us on Subscribestar: https://www.subscribestar.com/isaac-arthurFacebook Group: https://www.facebook.com/groups/1583992725237264/Reddit: https://www.reddit.com/r/IsaacArthur/Twitter: https://twitter.com