> In fact, if you're a believer in string theory, one could imagine that there's one fundamental string particle that's moving back and forth through time, crea

> In fact, if you're a believer in string theory, one could imagine that there's one fundamental string particle that's moving back and forth through time, creating all the other particles as it does so. Or take that further, and you get The Egg, by Andy Weir: https://www.galactanet.com/oneoff/theegg_mod.html https://www.galactanet.com/oneoff/theegg_mod.html