Collectibles and art have gone digital, enabled by a new sort of technology known as non-fungible tokens (NFTs). Just recently, Canadian singer and visual artist Grimes earned $6 million via an NFT auction, while a maker of digital basketball cards was valued at around $2 billion by venture capitalists. Dan digs into the NFT craze with David Pakman, a partner with VC firm Venrock and one of the earliest investors in one of the first NFTs, called CryptoKitties.