If you and a friend are being chased by a bear, you don’t need to outrun the bear — you just need to outrun your friend. Back in 2017, Apple’s former head of software, Avie Tevanian, used the metaphor to defend Tim Cook’s leadership. While innovation wasn’t happening at the same pace as it did under Steve Jobs, “they are staying ahead of the competition”, he said. But eight years on, the metaphor no longer defends Cook; it indicts him. The bear now has a name — artificial intelligence — and it i...