Radio 4 in Four - The man who can remember a 1000-digit number in an hour - ÃÛÑ¿´«Ã½ Sounds

Radio 4 in Four - The man who can remember a 1000-digit number in an hour - ÃÛÑ¿´«Ã½ Sounds
The man who can remember a 1000-digit number in an hour
Memory Grandmaster Ed Cooke can memorise a 1000-digit number in an hour. How?