My Left Hand's First Assignment
After two months of intensive coding, a muscle between my right shoulder blade and spine began protesting every day. Both hands typed, but only my right shoulder hurt. The only obvious asymmetry was the MacBook trackpad.
Instead of immediately buying new equipment, I decided to change the operator. My left hand wasn't unqualified—it had simply never been asked.
This exhibit became my experiment. Every click, every drag, every scroll on the MacBook trackpad was performed by my left hand. At first my brain kept sending commands to the right hand out of habit. I had to consciously stop it and let the left hand take over.
Habits don't disappear because we understand them. They change only when we repeatedly choose a different action. Sometimes the hardest part isn't teaching the other hand—it's convincing the brain to wait long enough for it to try.