I can think of a few responses to this question. First: The enter key is not actually that far away from tab for the left hand, so hitting enter would not invol

I can think of a few responses to this question. First: The enter key is not actually that far away from tab for the left hand, so hitting enter would not involve moving the left hand that much farther. Second: I was at one of their road trip events, and one of the things the creators mentioned was that keeping your wrists perfectly still is apparently not that healthy, so having certain parts of the keyboard "recommend" that you move your hand to use them might help reduce strain on the wrist/hands. Third: The same problem exists for normal keyboards already, except worse. Looking at the keyboard I'm typing on, if I wanted to hit enter while using a mouse with my right hand, I would have to move my left hand all the way across the keyboard to an awkward angle in order to do so. Fourth: I can't remember very many situations where I actually want to press enter while using a mouse with my right hand. I'm usually either on the home row, or using the mouse to move around a file to find a new point to start typing from the home row again.