Once upon a time, the realm of cryptocurrencies was a curious sideshow, a place where criminals did business and enthusiasts dabbled at their own peril.
Not anymore. It¡¯s rapidly evolving into a veritable Westworld of finance, where glitchy simulacra of investment funds, banks and derivatives allow visitors to take on immense risks ¡ª risks that could ultimately spill over into traditional markets and the broader economy.
Regulators have been struggling to get a grip on all this. It¡¯s increasingly important that they succeed, and soon.

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