I enjoyed your review very much, even though you are occasionally too kind. I liked your points about the history of science,
and also your remarks about luck and privilege.
I don't really believe the DNA-genetic code story should be called "the greatest achievement of science in the twentieth
century". Surely the Physicists' Revolution, from about the turn of the century to the discovery of quantum mechanics
in the mid-twenties, equally deserves this title? Why not put "mid-twentieth century" to avoid this comparison?
Most of all I liked your ending. The picture of Jim in wonderland is a touch of genius.
Looking back I now realize that was just the way it felt.
P.S. Did you know that John Griffith was related to Fred Griffith? I think a nephew.