I object to the glib use of the phrase “time reversal” in this article. Time is a sequential history of events and is not reversible. What the researchers are accomplishing is a clever resequencing of events, roughly analogous to playing a strip of movie film backwards, an event that I’m sure you will agree occurs in quite normal time. The mirror analogy in the article is much more valid.

Frank Moffett Mosier
Fresno, Calif.