Grab a pen or pencil and quickly make a list of things you couldn't do if you suddenly lost your right hand (or left hand if, like one in 10 people, you're a southpaw). Next, taking the same amount of time, write down what you couldn't do if you still had the use of your dominant hand but your other hand abruptly vanished. In all likelihood, your first list is longer than the second.
Conventional wisdom would suggest that your dominant hand does all the really important stuff (like preparing lists of what it couldn't accomplish without itself), leaving your nondominant hand to watch helplessly from the sidelines. But conventional wisdom doesn't take into account the subtle role your brain plays in completing manual tasks, as you'll soon discover.
Photograph by Zeke Berman
With the same pen or pencil you just used, make a note of whatever random thoughts pop ...
