Well my arms didn't get longer, that's for sure. Also MacOS and software made for MacOS doesn't optimize for touch targets unlike something that will be distributed on iOS/iPadOS.
Not that novel. The first ergonomics studies on touchscreens were done in the seventies. In 2010, touchscreens were already sophisticated technology and well established in many settings.
I got my first laptop with a digital pen and touchscreen in 2008 or so. They were rare back then, but nothing groundbreaking new. The touchscreen did suck though.
