Now that cryptocurrencies such as Bitcoin have plummeted from last year's absurdly high valuations, the techno-utopian mystique of so-called distributed-ledger technologies should be next. The promise to cure the world's ills through "decentralization" was just a ruse to separate retail investors from their hard-earned real money.
ROUBINI on the rampage. Mostly true, block chain is over hyped. But the block chain variants will live on because they still work in centralized systems with a few trusted miners.
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