Remember carrying a wallet? I'm old enough to remember when wallets had room for your checkbook and a pen. Maybe a nice Cross pen that you got for graduation. Then Apple and other tech gadgets put your wallet in your phone. And now a Swedish startup is putting your wallet under your skin. Yesterday's conspiracy theories are today's breakthroughs.

Swedish startup Epicenter unveils rice-sized microchip implant that stores your COVID vaccine passport under your skin and is read with technology used to take contactless payments

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