"[A] fascinating and wide-ranging investigation into how the human brain registers time.... [Marchant's] thought-provoking book is a rewarding delve into the mysteries of time and consciousness." -Andrew Crumey, Wall Street JournalNew Scientist • Best New Popular Science Books of February 2026The Next Big Idea Club • March 2026 Must-Read BooksA mind-bending, brilliantly accessible exploration of the shifting science behind perception, reality, and time.