Complex Insight - Understanding our world

I first came across John Holland's work in a an article while I was at High School some 30 years ago. A few years later he kindly answered my questions in an out of the blue phone call and then over the years in conversations at conferences and in emails.  I have always been in awe of the breadth of his vision and interests, intrigued by his ideas and appreciated the fact he would take time to encourage research and passionate discussion. Sadly with his passing last year - we lost a truly original insight. Stephanie Forrest and Melanie Mitchells article for the ACM captures the breadth of his interests, his wonderful legacy of ideas and perhaps more importantly  the example he set in his humanity and generosity. Well worth reading.