The play “Copenhagen’’ by Michael Frayn, which is very clever about the way it plays with quantum mechanics.
Evidence details
Reading interviewOwn answer to "What science books do you like?" in a reading interview; favorable named pick of the published play.
The quote is taken word for word from the source.
The Boston Globe · undated · accessed 2026-10-26
Interview · Interview
Q&A reading interview; Randall's own labeled answer names the book with favorable judgment. The URL path carries 2011/10/15, but the page shows no visible publication date, so the date is recorded as undated.