RNA is too short-lived (in the order of minutes to hours) to serve as a long-term memory. Muscle memory, despite the name, corresponds to changes in the brain s

RNA is too short-lived (in the order of minutes to hours) to serve as a long-term memory. Muscle memory, despite the name, corresponds to changes in the brain structure. In a way muscle memory is the exact opposite: it’s a slowly learned, but long-lasting response. Whereas RNA memory, to the extent that it exists, is an immediate but short-lived memory.