Last week, Christie’s sold a digital collage of images called “Everydays: The First 5000 Days” for US$69.3 million dollars. This week, Elon Musk said he’s selling a tweet of his as an NFT, which contains a song about NFTs. The bidding on Musk’s tweet has already topped $1 million and millions more are pouring into the market — he has since tweeted, “Actually, doesn’t feel quite right selling this. Will pass.” And sites like NBA Top Shot (where you can buy, sell and trade digital NBA cards) have individual cards selling for over US$200,000. It might sound ridiculous but the...