Following the sad news about Joe Armstrong passing away, some of his former colleagues from Ericsson wrote a good-bye note and asked if InfoQ would publish it. Joe has been on my shortlist of people to invite on The Changelog for a long time, but I never got around to contacting him. Regretful. This is a touching tribute. I especially enjoyed this bit: Nobody could avoid being affected by Joe’s good mood and boundless enthusiasm. He was highly appreciated as a speaker and panel member at many international conferences. Many programmers can testify to just how important Joe has been for them in developing their profession.