Jack Dorsey's first-ever tweet, which sold as an NFT (or non-fungible token) in March 2021 for over $2.9 million, is now only worth thousands of dollars. (MIAMI, FL) - Back then Jack Dorsey, then-CEO of Twitter, auctioned his first tweet as an NFT and a collector purchased it for 1630.58 Ether, which was worth $2.9 million at the time.