What Are NFT's, and Why Are They So Popular?

Craig's guest is Bill Shea, reporter for The Athletic.   Bill has covered the business side of sports for many years, previously with Crain's Detroit Business, and now with The Athletic.  Recently, his work has focused on the spiking interest in so called NFT's (non-fungible tokens) and how this new crypto currency based digital art and collectibles market is impacting sports, sports collectibles, the art world, and more.   Fascinating stuff.