Apple enters post-Cook era chasing its next hit

The Tim Cook era is coming to a close with an existential challenge for Apple: figuring out what comes after the iPhone.Why it matters: Cook extended the iPhone's success into products like the Apple Watch and AirPods and built a powerful services business. But the company hasn't broken into a major new category — and has stumbled into the AI era.Driving the news: Apple announced Monday that Cook will cede the CEO reins to hardware chief John Ternus, while remaining with the company as executive...