Venture capitalist Jason Calacanis has been pouring cold water on Bitcoin these past few days: he says that a return to $80,000 is a dead-cat bounce, that it’s boring, and that in 2017 it still failed to produce a mass-market application. His believers have gone from pirates to suited men in orange ties.

Three hours later, Michael Saylor fired back: Bitcoin is now a $160 billion success and the world’s most valuable digital asset. Digital capital is the killer app—preserving value across generations is a bigger deal than swapping credentials over dinner. He ends with one last line: don’t take the orange tie off.

As of press time, BTC is at $84,500, up about 5.3% over the past 24 hours. Ethereum is at $2,715, up about 5.5%.