The mysterious case of man who can read letters—but not numbers—exposes roots of consciousness

In the video, the man sounds creeped out. “This is too strange for words,” he mutters. He’s holding a plate-size, green foam 8. When upright, it looks to him like an incoherent jumble. But when he rotates it 90°, the shape snaps into focus; it looks like “a mask.” He begins to rotate the numeral back and forth, watching it melt and cohere over and over. He finally hands it to a nearby scientist, saying, “You gotta take that away.” This man, known as RFS, is the subject of a new case study that would have made neurologist Oliver Sacks proud. ….[READ]