You might also like these similar short stories with a similar theme: - "What's expected of us" by Ted Chiang, about a reverse time delay device that reveals t

You might also like these similar short stories with a similar theme: - "What's expected of us" by Ted Chiang, about a reverse time delay device that reveals the deterministic nature of physics and causes a societal crisis. It's eventually used to send a message to the past from the heat death of the universe: https://www.nature.com/articles/436150a https://www.nature.com/articles/436150a - "The Hundred Light-Year Diary" by Greg Egan, about a society that adapts to being able to receive messages from themselves one hundred years into the future. Every person gets a ration of 100 characters per day that they can send to their past self. This one also deals with questions of free will, and what we choose to omit from our "perfect" records when given the chance. Synposis: https://en.wikipedia.org/wiki/The_Hundred_Light-Year_Diary https://en.wikipedia.org/wiki/The_Hundred_Light-Year_Diary