Why did the touchbar not take off? It's pretty cool

[Tiangou]

You have to reach up to use it, so it interrupts the smooth flow of typing or mousing, and few apps supported it in any way that was particularly inventive or useful.

I appreciated being able to tap-drag the brightness and volume controls.

But that didn't make up for my frequent accidental brushing of the Escape-key corner which was awkward much of the time and occasionally catastrophic.