What’s one word that will spook any investor in any market? Bubble. The word tends to stir up painful memories of the dot-com boom and bust of the late ‘90s, the financial crisis of 2008… and now, the NFT market. The NFT market has exploded over the last year. Estimates of total NFT sales in 2021 vary from $25 billion to $41 billion — both a massive increase from 2020, when sales…