Obituary – Keith Lyons May 21, 2020 Commentary by Stephen Downes Nobody wrote to me more often than Keith. Nobody. Most of those were just kindly notes thanking me for my contributions. Often they were also insights or invitations to discussion. I'm really going to miss him as a colleague and as a friend. Enclosures:- [Direct link] Views: today, total (since January 1, 2017).