Jack Dorsey has laid off a significant portion of Block's staff, with reports varying on the exact percentage, though 40% is commonly cited. The layoffs are reportedly related to the company's move towards using AI, though some current and former employees have expressed skepticism about the ability of AI to replace their jobs. The extent of the layoffs and the reasoning behind them may be further explained by Dorsey, with some reports suggesting around 4,000 employees were let go.