Jack Dorsey blames AI for cutting nearly half of Block's workforce. But a closer look at the company's history of overhiring and structural problems tells a different story.

Block said Thursday it's laying off more than 4,000 employees, or about half of its headcount.

The Twitter co-founder says artificial intelligence "fundamentally changes what it means to build and run a company."

La compañía de Jack Dorsey se deshace de casi la mitad de su plantilla