The new version of Mark Zuckerberg — I’ll call him alt-Mark — is peddling a new version of the metaverse. The original idea behind the virtual world, as you may hazily recall, was that we’d be digitally transformed into legless cartoon characters who would fly around a cartoon planet having sword fights and doing other supposedly fun things. It was a reboot of The Jetsons with Mr. Spacely as executive producer.

That version didn’t come close to achieving crit...