2021 was the year of the non-fungible tokens. NFTs are digital files that are linked to the blockchain— the digital database underpinning cryptocurrencies such as bitcoin and ethereum. Except that those are fungible, meaning they can be exchanged or traded for something identical but NFTs can’t because they’re a unique, one-of-a-kind digital asset. Although they’ve been around for a while, this year saw the concept really take off with such assets selling for millions.
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