Daniel Tammet is a high-functioning autistic savant. He can calculate huge sums in his head in seconds and instantaneously recognize prime numbers, but he finds emotions difficult to understand and has trouble telling left from right. 1 of fewer than 50 such people living worldwide, Daniel is unique in his ability to articulate his savant experience. He describes his visual experience of numbers as complex synaesthetic shapes with color, texture and motion. 37 is lumpy like porridge, while 89 reminds him of falling snow. Sequences of digits form visual landscapes in his mind.

A glimpse of our posthuman future.

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