I think morphing screens are impractical. But that doesn't mean we have to give up on tactile affordances altogether. I think there's a real missed opportunity

I think morphing screens are impractical. But that doesn't mean we have to give up on tactile affordances altogether. I think there's a real missed opportunity for Tesla, with their floating touchscreen. The natural way to adjust the temperature and other controls in the bottom bar is to put your fingers behind the screen to hold your hand steady and use your thumb to press the buttons. The back of the screen is currently a featureless flat surface, but it could easily have tactile features for your fingers to find. If you could feel where your fingers are relative to the screen then you could hit the bottom bar controls without looking. And it wouldn't ruin the minimalist aesthetic because it's all hidden from view behind the screen.