This is a better implementation of Touch Bar than the actual Touch Bar on MacBooks. Lol.
As the users eyes are not shifted from the main screen to a display bar perpendicular to ones actions. It is not like a keyboard where once can have tactile feedback or muscle memory for the individual keys.
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The touchbar is obnoxious for users, who would prefer an actual touch screen and physical function keys, and for developers who have better things to do than support the touchbar for the small percentage of users who have them. At the very least apple should make real function keys an option on all configs of the MacBook Pro, not just the wimpy one with inadequate cooling and slower WiFi.
SideCar is like the inevitable for the MacBook line to incorporate a touchscreen. Had the MacBook had touch and pencil support capable screen, an iPad would just be a bonus.