Would you eat a steak grown from your own cells? The question may become increasingly plausible in the next few years. What's the story with the bizarre green slime flowing beneath Toronto? And who on (or off) Earth created that mysterious monument in Utah? Learn more about your ad-choices at https://www.iheartpodcastnetwork.com They don't want you to read our book.: https://static.macmillan.com/static/fib/stuff-you-should-read/ See omnystudio.com/listener for privacy information.