"Factoring in millions of people when I'm writing a song is not a good idea. I don't ever do it"

Taylor Swift is stressing the value of writing songs that originate from a personal place. She thinks that when composing a song, it is necessary to concentrate on the individual experience and not attempt to consider the experiences of countless individuals. She is suggesting that when composing a tune, it is best to concentrate on the specific and not try to make it relatable to a large group of individuals. Taylor Swift thinks that when composing a tune, it must originate from a personal location and not be influenced by the experiences of others. She is recommending that when writing a tune, it is best to focus on the private and not attempt to make it relatable to a large group of individuals. By doing this, the song will be more significant and genuine. Taylor Swift is highlighting the value of composing songs that come from a personal location and not trying to factor in the experiences of countless individuals.