I've known Ed since 1969 when he served on my doctoral committee at the University of Wisconsin. The faculty had a voluntary coffee fund in their lounge and would post a weekly chart of funds contributed. Ed would randomly add or delete small amounts of cash so the books never balanced.
We maintained our friendship in the early 70's when Ed stayed at my house in Eugene OR and I at his home in Palo Alto. It was a great pleasure to renew this friendship when I joined the University of Michigan in 1999. I would kid Ed about his becoming a reductionist and he would reply that this was a lesser flaw than my becoming an engineering professor.
I will miss his great sense of humor and helpful criticism.