I havent actually. But I drive a car with a gear(stick) and whenever I drive a car without one it feels that I can use the hand to hold some coffee or get some

I havent actually. But I drive a car with a gear(stick) and whenever I drive a car without one it feels that I can use the hand to hold some coffee or get some texting done. I do get your point regarding cognitive fatigue though but I think we need a conclusive statistic rather than one thrown by Tesla.