
Résumé:
Just as medicine is not a science, but
rather an art--a device, practised in a scientific manner, in
its best manifestations--time-travel stories are not science
fiction. Time-travel, however, has become acceptable to science
fiction readers as a traditional device in stories than are
otherwise admissible in the genre. Here, Frederik Pohl employs
it to portray the amusingly catastrophic meeting of three
societies.