I've posted a few of my own opinion-changes here; I think the last
major one may have been deciding my naive opinion of the 1990's as a
decade of "world peace" was rose-colored.
Maybe someday I'll change my opinion on the opportunity costs of
podcasts; for now, I'm giving Fukuyama's new 2-parter on "The End of
History" a miss: although I'm vaguely curious as to whether his
current line might be more retrospective or more retcon, I'll wait
for a print version.
-Dave
Stupidity is the continuation of History by other means.