Meet a 23-year-old millionaire who canceled his plan to move to San Francisco because of a billionaire tax he might never have to pay

At 23, Emil Barr is already a millionaire building a business in Columbus, Ohio. But San Francisco’s investors and AI scene caught his eye—enough that the Flashpass founder told Fortune he signed a lease to move there about a year ago. He changed his mind after looking more closely at California’s regulatory and tax environment, including its proposed billionaire wealth tax, which helped persuade him to cancel the move entirely. He wouldn’t owe the tax under the current proposal, but fears it could pave the way for taxes on millionaires like him. “I think it was less of a matter of immediate finances,” Barr told Fortune. Instead, he pointed to what he described as California’s “anti-entrepreneurial” political rhetoric. His decision raises the question dividing California: would taxing its biggest fortunes help pay for essential…