I met Avner during his postdoc time at UofT. We talked
sometimes in the theory corridor, mainly about Russian
language (he once asked me how to say "diapers" in Russian
-- I didn't know) and Russian music. There were many songs
that both of us knew, mainly songs by Vladimir Vysotsky.
And there is one of these songs, "the summit",
that I keep thinking of ever since I heard the tragic news.
The song is about mountaineers, and one last summit they
don't get to reach. About the beauty and the ultimate danger
of such life: and yet that it is a better end than "from
drinking and colds". About the characteristic traits of
mountaineers -- friendship, courage, appreciation for the
beauty of nature. Like Avner...