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Q&A Epidemic friendly time traveller

My time traveller from the distant future is about to get stranded back in time, but realises that by travelling back a short time, maybe 100000 years, he is going to leave a trail of destruction b...

3 answers  ·  posted 4y ago by pjp‭  ·  last activity 4y ago by pjp‭

Question travel biology evolution time-travel time viruses