The fallacy of Mark Solitarism, the idea that Cutie Marks have single, literal interpretations, has been disproven multiple times, either by individuals with multiple-talent Marks (i.e.; Spitfire's Cutie Mark signifying her talent at flying and at directing her fiery passion) or by individuals with abstract Marks (i.e.; Sunburst's Cutie Mark signifying his talent for 'shedding light' on questions of magical theory). This has led some to propose not only that Cutie Marks can have multiple meanings, but that some of those meanings may wax or wane in prominence over the years, allowing a pony to seem to change talents over time as their capabilities or interests change.

Rainbow Dash is about to prove them right.

Entry in the My Little Pony Renaissance Contest.