I was thinking, it might be possible that our brains will, with time, remember where the buttons are located, without having to look down. Sort of like how as we grow when we're babies, we kind of learn where are limbs are, & when people lose a limb, they still feel like it's there. It's called proprioception(I only know cuz I was just reading about something relating to it). I could be wrong, but, it's just something I thought about.