Sad news that John Holland passed away on the weekend. A warm obituary can be found here:
http://www.santafe.edu/news/item/in-memoriam-john-holland/
Many people’s lives and research have been touched by his ideas and enthusiasm. This site definitely would not exist without them.
Curiously, his passing may not have been major mainstream news, but his ideas are. It was interesting to note that fields with his ideas were name checked in the latest Google announcement: https://abc.xyz.
History will undoubtedly recognise John as a pioneer in the computer age.