One of Wall Street’s biggest crypto skeptics is taking fresh aim at bitcoin amid its steep sell-off.

Nouriel Roubini — also known as “Dr. Doom” for his frequently apocalyptic predictions on markets and the economy — doubled down on his view that bitcoin is far from being an inflation hedge and is a “pseudo-asset class.”

Bitcoin, which entered bear market territory late last year, traded around $67,400 on Wednesday, down 45% from its peak in late October.

“Calling Bitcoin or any other crypto vehicle a ‘currency’ has always been bogus. It is neither a unit of account, a scalable means of payment, nor a stable store of value,” Roubini wrote in an op-ed for Project Syndicate earlier this month.

Roubini, who…