But who could this so-called Bowery be?

That’s what we in the journalism world call thin.

Far more convincing is the more widely held theory that Swift’s boyfriendJoe Alwynis the concocted co-writer.

Taylor Swift and Joe Alwyn

Credit: Jackson Lee/GC Images

What’s more, Alwyn’s great-grandfather was a composer and conductor named William Alwyn.

A bit convoluted, perhaps, but not as altogether unlikely as the Mitchell theory.

Other users deduced that Alwyn’s mother’s name is Elizabeth, hence the song title “Betty.”

Representatives for Swift did not immediately respond to EW’s request for comment.

(We imagine they’re a little busy today.)