Jack Dorsey to cut 4,000 workers at Block amid AI advances – but specters such as weak crypto market haunt company Jack Dorsey to cut 4,000 workers at Block amid AI advances – but specters such as weak crypto market haunt company Jack Dorsey cited AI as the driving force behind cutting 40% of his company’s employees, but other factors such as a weak crypto market, overstaffing and a declining stock price may also have motivated the move. Last week, the financial technology company Block