A Giant Pool of... Non-Fungible Tokens? Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email In this Oct. 29, 2008, file photo, an ice sculpture of the word “Economy,” titled "Main Street Meltdown" and coinciding with the 79th anniversary of the Black Tuesday stock market crash. ( Frank Franklin II / AP Photo ) Hosted by Brooke Gladstone Produced by WNYC Studios