Baseball trading cards from the 90s are making a comeback. In 2021, non-fungible tokens have taken the place of paper cards and go beyond sports. They are providing a controversial way to value and trade in the popularity of celebrities such as South Korean boy band BTS and Canadian solo artist Justin Bieber.
90年代的棒球卡改头换面又回来了。2021年，非同质化代币(NFT)取代了纸质卡片，并超越体育的范畴。它们正在提供一种有争议的方式，用来对名人——例如韩国男团防弹少年团(BTS)和加拿大独唱艺术家贾斯廷•比伯(Justin Bieber)——的知名度进行估值和交易。
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