This week Code Switch digs into The Ministry of Time, a new book that author Kailene Bradley describes as a "romance about imperialism." It focuses on real-life Victorian explorer Graham Gore, who died on a doomed Arctic expedition in 1847. But in this novel, time travel is possible and Gore is brought to the 21st century where he's confronted with the fact that everyone he's ever known is dead, that the British Empire has collapsed, and that perhaps he was a colonizer.

In a peer-reviewed journal article, University of Queensland physicists say time is essentially self-healing. Changes in the past wouldn't necessarily cause a universe-ending paradox. Phew.