Ask HN: Is there any hardware that allows to look at screen in bright sunlight?
(e.g. screen film + glasses) In case of Macbook Pro, the two problems are glare and brightness.
When you put your face there, you cut external light out from that end and the tube part stopped light from coming in at the sides. The bottom end of the tube was blocked off except for the screen itself. So you could look at the screen inside a tiny 'room' of complete darkness.
VR goggles?