Go is open source and was designed by Ken Thompson (over 70) and Rob Pike (over 60) Don Knuth of course is over 80, he has written some of the oldest available

Go is open source and was designed by Ken Thompson (over 70) and Rob Pike (over 60) Don Knuth of course is over 80, he has written some of the oldest available open source programs still available (from before the term "open source" was coined)