Warren Buffett and Charlie Munger doubled down on their criticism of bitcoin at Berkshire Hathaway’s annual shareholders meeting on 30 April, while crypto enthusiasts appear unswayed.

Buffett, Berkshire’s chair and chief executive, reiterated his view that bitcoin is not a productive asset and is not linked with anything tangible. “Whether it goes up or down in the next year, or five or 10 years, I don’t know. But the one thing I’m pretty sure of is that it doesn’t produce anything,” Buffett said.