Let’s relax and sleep with more mysteries of relativity, like the speed of light, why time isn’t time, and how a fake train robbery reveals that simultaneity doesn’t exist. Except when it does.   Raffle Time! Everyone who supports us in November will be entered into a drawing for a personal episode all your own. Whee! Patreon: https://www.patreon.com/boringbookspod Buy Me a Coffee: https://www.buymeacoffee.com/d5kcMsW   Read “The ABC of Relativity” here: https://www.gutenberg.org/ebooks/67104   Music: "Boring Books for Bedtime,” by Lee Rosevere, licensed under CC-BY http://leerosevere.bandcamp.com   If you'd like to suggest a copyright-free reading for soft-spoken relaxation to help you overcome insomnia, anxiety and other sleep issues, connect on our website, http://www.boringbookspod.com.