1.9k Views inScience & Tech How do we know that there aren’t already time travellers around us? Maybe in our… biologybiologymemeschemistrychemistrymemesphysicsphysicsmemessciencesciencememesciencememes What do you think? 500 points Upvote Downvote See more Previous article Which performance you like more? 1or 2? What do you think?… Next article My other Brother…
