Rick and Morty unintentionally demolish civilization with a plague and have to go to an alternate timeline in which they preset every little thing, but died shortly afterwards. Within the magical kingdom, not every thing is so magical for instance, an army of slaves is employed to move trains. In The Stinger of "A Rickle in Time", the testicle-headed 4th dimension aliens discover Albert Einstein and beat him up, telling him not to mess with time.