When people ask me what kind of robot I was aiming for, I would always reply that I want a robot that can go get me a can of beer from the refrigerator. This may sound simple enough, but in reality, it is quite difficult. Enabling the robot to figure out to which side the door of the refrigerator should be opened and to determine what item to select from the vast arrays of items inside the fridge. I did try once in the past to create a hand of the robot. I observed how people use their hands, and after all that study, I gave up.
Human beings use every single finger of their hands.
I learned that people use everything they have. That is the reason why I gave up. The task of creating a human-like hand for robot was just too daunting. So currently, my focus is on developing more basic operations for the hands of the robot. I think that a robot is simply an extension of a machine, so I intend to make it a tool that is convenient.