Bitcoin has gone mainstream. For crypto, that’s controversial.

It’s been almost two weeks since several investment products tied to bitcoin started trading on old-school financial markets. These bitcoin ETFs have made it easier for everyday investors to place bets on the crypto market, and in the days since federal regulators gave the green light, investors have poured nearly $2 billion into the new bitcoin funds. But probably not the crypto purists, says Joel Khalili, who reports on the industry for Wired. Marketplace’s Meghan McCarty Carino spoke with Khalili about crypto early adopters, who, he says, are quite happy to stay on the fringes of the financial system.