Here's why:
* Common nouns refer to general, non-specific people, places, or things.
* Talent refers to a natural aptitude or ability, which is a general concept.
Examples:
* "She has a talent for music." (general ability)
* "He showed talent in his writing." (general aptitude)
Contrast with a proper noun:
* Proper nouns are specific names of people, places, or things. For example, "Michaelangelo" is a proper noun because it refers to a specific person. "Talent" does not refer to a specific person, place, or thing.