Lutsina: Because futuristic science fiction does not need to represent current social realities, its writers can envisage radically new social arrangements  Thus it has the potential to be a richer source of social criticism than is conventional fiction  Priscilla: That futuristic science fiction writers more skillfully envisage radically new technologies than new social arrangements shows how writers' imaginations are constrained by current realities
Because of this limitation, the most effective social criticism results from faithfully presenting the current social realities for critical examination, as happens in conventional fiction
some science fiction writers have succeeded in envisaging convincing, radically new social arrangements