How to Build a Time Machine

Fun, short. Post-Einstein physics is so freaky. The tldr: going FORWARD time is easy (just travel as close to the speed of light as possible). Going backward is tricky, but also - thanks to the multiverse - basically possible.

Related reads:
- Seven brief lessons in physics, Carlo Rovelli
- Astrophysics for people in a hurry, Neil DeGrasse Tyson
- The accidental universe, Alan Lightman
- Why is there anything?, Matthew Rave
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McCoy: The Provenance Of Shadows (Star Trek: Crucible, #1), David R. George III