John Ternus’s next big thing might be the iPhone

Hello again and welcome back to Fast Company’s Plugged In. By almost any imaginable measure, Tim Cook’s tenure as Apple’s CEO was mind-bogglingly successful. Even so, nobody can run a gigantic company for 15 years without their share of stumbles. Some of Cook’s most epic ones came when Apple tried its hardest to invent the next revolutionary product beyond the smartphone. For example, more than three years after the Apple Vision Pro’s announcement, it remains an intriguing experiment stuck in a…