These are pieces of information that are not necessary to the meaning or purpose of writing. example: if i were to ask how old you were, and you said: i am 12; i was born in march, under a full moon, during a storm. everything after the number 12 would be unnecessary to answer the question. these are pieces of information that are not necessary to the meaning or purpose of writing. example: if i were to ask how old you were, and you said: i am 12; i was born in march, under a full moon, during a storm. everything after the number 12 would be unnecessary to answer the question. these are pieces of information that are not necessary to the meaning or purpose of writing. example: if i were to ask how old you were, and you said: i am 12; i was born in march, under a full moon, during a storm. everything after the number 12 would be unnecessary to answer the question.