Taylor Swift has written a number of songs commonly understood to be about John Mayer, including Dear John, The Story of Us, Ours, and Would've, Could've, Should've. Three of those songs were on Speak Now, which suggests that there may be additional songs about him that weren't released, especially as she recently wrote another song about him (WCS), more than twelve years after their relationship ended.

Evidence in favor:

• She seems to consider her relationship with John Mayer very impactful on her life (suggested by the number of songs she's written about him and the length of time they span)

• She seems to have no qualms digging up her past again, as in Fearless (Taylor's Version), she released Mr. Perfectly Fine, which was about Joe Jonas, who she dated over a decade ago, and in Red (Taylor's Version), she released the 10-minute version of All Too Well, which was about Jake Gyllenhaal, among other songs which may be about him, as vault tracks. This also indicates that so far, statistically, if a relationship is prominently featured on the main album, then there's a good chance there are vault tracks about it.

• The release of Would've, Could've, Should've indicated that she doesn't have a problem releasing songs about him again.

Evidence against:

• The names of the vault tracks - Electric Touch, When Emma Falls In Love, I Can See You, Castles Crumbling, Foolish One, and Timeless - don't particularly evoke John Mayer necessarily, or at least not as obviously as Dear John, although there's definitely potential for at least of one those to be about him.

• Taylor Swift has made some statements about not writing about her relationships anymore but that hasn't seemed to stop her.

Resolves yes if I believe that the common understanding among fans of Taylor Swift is that there is at least one song about John Mayer among the vault tracks. What Genius.com says will be very influential on my decision, although Reddit etc. will also be factors. I may resolve to a percentage, but language such as "is believed to be about John Mayer" will generally be sufficient for a yes resolution.

I will be without internet for most of July. I will resolve this market after I come back to civilization, and I ask that this market not be resolved without my consent by another user. The extra time will also give more time for a consensus to form.