Before research into sustainable energy, David MacKay had rediscovered Low Density Parity Check (LDPC) codes in early 90s, perhaps the most common type of error

Before research into sustainable energy, David MacKay had rediscovered Low Density Parity Check (LDPC) codes in early 90s, perhaps the most common type of error correction codes used nowadays in commercial systems (alongside with Reed Solomon codes used for storage). He then worked on sustainable energy long before it became fashionable. His early death was a significant loss. He blogged cheerfully from hospital til few days before his death http://itila.blogspot.com/2016/04/perhaps-my-last-post-well-see.html?m=1 http://itila.blogspot.com/2016/04/perhaps-my-last-post-well-... Rest In Peace David MacKay.