Simplify the following text for a Grade 8 native English-speaking person.
Original: He also writes that it may have been that Epimetheus and Pandora and their roles were transposed in the pre-Hesiodic myths , a `` mythic inversion '' .
Simplified: West also writes that it may have been that Epimetheus and Pandora and their roles were transposed in the pre-Hesiodic myths . This is called a `` mythic inversion '' .