Andy's blog on Science Fiction and related ideas for the subject ELC1A01 Science fiction as a reflection on humanity.
https://www.sciencealert.com/a-physicist-has-worked-out-the-math-that-makes-paradox-free-time-travel-plausible?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencealert-latestnews+%28ScienceAlert-Latest%29
