Tobias Lütke, CEO of Shopify, speaks at the Collision conference in Toronto, Canada, on May 22, 2019.David Fitzgerald | Sportsfile | Getty ImagesShopify CEO Tobi Lutke is changing his company's approach to hiring in the age of artificial intelligence.Employees will be expected to prove why they "cannot get what they want done using AI" before asking for more headcount and resources, Lutke wrote in a memo to staffers that he posted to X on Monday."What would this area look like if autonomous AI a...