Block Just Cut 4,000 Jobs — Jack Dorsey Says AI Means Companies Don't Need This Many People Anymore

Block (formerly Square) CEO Jack Dorsey posted a public letter announcing that nearly half the company—over 4,000 people—would be laid off. The bombshell: this isn't because the company is struggling. Business is strong. The reason? 'AI tools paired with smaller, flatter teams are enabling a fundamentally new way of working.' He chose one massive cut over gradual attrition, calling repeated layoffs 'destructive to morale, focus, and trust.' This letter is the most direct CEO statement yet about AI reshaping org structure—and every tech lead should read it.