All non-real worlds provide exploration: Evidence from developmental psychology.

While Dubourg and Baumard argue that predisposition toward exploration draws us to fictional environments, they fail to answer their titular question: "Why Worlds?" Research in pretend play, psychological distancing, and theatre shows that being "imaginary" (i.e., any type of unreal, rather than only fantastically unreal) makes exploration of any fictional world profoundly different than that of real-life unfamiliar environments.