Now I want to write a book about a world where individual humans don't have immortal souls but cities do. Would a person moving to a different city be like someone having a blood transfusion? If dead cities can be reincarnated as other cities, does that mean current-day Istanbul was Constantinople in a past life? Or does reincarnation happen more randomly, and Constantinople just happened to become some random town in New Jersey? Is genocide like murder for cities, or is it more like having a limb amputated?

~~oh shit i've accidentally reinvented hetalia from first principles~~