Has there been any documentation of being able to either write down (jot down) or type in (key in) different texts using the left hand and the right hand respectively, simultaneously?
So, I'm interested in whether or not it has been documented that certain individuals can do this, and I would be greatly interested in any literature on the subject. For example, have there been any pedagogics who have argued this exercise would be beneficial for the development of individuals?
Note: Of course, many people could do this, if they would do it extremely slowly; so obviously I am interested in the maximum velocity.