The mystery of memory …

 … (A)phantasia and severely deficient autobiographical memory: Scientific and personal perspectives. (Hat tip, Dave Lull.)

…the process of science is not just deduction by individuals but construction by a community. The remarkable geometric abilities of some blind mathematicians such as Morin have given insight into the varieties of mathematical imagination and quite how diverse this community is. Morin himself noted that “disabilities like blindness, ... reinforce one’s gifts and one’s deficits” and has drawn attention to two sorts of mathematical imagination: “time-like” which deals with information by proceeding through a series of steps, at which he was not good, a deficit worsened by blindness, and “space-like” which allows one to comprehend information all at once, at which he excelled (Lawrence, 2002).