Science & Futurism With Isaac Arthur

The great mystery of where all the aliens are in our vast Universe contemplates ancient interstellar civilizations building enormous megastructures that rival worlds or even stars in the immensity... and asks why we can't see these giant alien artifacts.Sign up for a Curiosity Stream subscription and also get a free Nebula subscription (the streaming platform built by creators) here: https://curiositystream.com/isaacarthurWatch the Video Version: https://youtu.be/caE0HVD3jaQEvent Horizon with John Michael Godier: https://www.youtube.com/c/EventHorizonShowThis Week in Space with Rod Pyle: https://twit.tv/shows/this-week-in-spaceVisit our Website: http://www.isaacarthur.netSupport 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/Isaac_A_Arthur on Twitter and RT our future content.SFIA Discord Server: htt