The universe is billions of years old. If, in the future, humanity were to explore the galaxy and visit other planets around other stars, we might be visiting places where at one time, an advanced civilization once existed. However, if such a civilization existed, it might have been millions of years in the past. If that was the case, how would we even know that it existed? Also, what if we ask that same question of Earth rather than of alien worlds?Learn more about the Silurian Hypothesis on this episode of Everything Everywhere Daily.SponsorsSign up for ButcherBox today by going to Butcherbox.com/daily and use code daily at checkout to get $30 off your first box!Subscribe to the podcast! https://link.chtbl.com/EverythingEverywhere?sid=ShowNotes--------------------------------Executive Producer: Charles DanielAssociate Producers: Ben Long & Cameron Kieffer Become a supporter on Patreon: https://www.patreon.com/everythingeverywhereUpdate your podcast app at newpodcastapps.comDiscord Server: https://discord.gg/UkRUJFhInstagram: https://www.instagram.com/everythingeverywhere/Facebook Group: https://www.facebook.com/groups/everythingeverywheredailyTwitter: https://twitter.com/everywheretripWebsite: https://everything-everywhere.com/ Learn more about your ad choices. Visit megaphone.fm/adchoices