Silicon Valley still has no idea what might kill the smartphone

• The latest attempt to dethrone the smartphone arrived this week.
• Humane, a startup founded in 2018, released an AI pin that aims to offer an alternative.
• Reviews suggest it's far from a smartphone-killer, however.

Silicon Valley is having a hard time figuring out what a post-smartphone future might look like.

Ever since Steve Jobs introduced the world to the iPhone almost two decades ago, back in 2007, no product has come close to having a stranglehold on people's attention quite the way the pocketable device has.