“Your Possible Pasts” (mislabeled as “Your Impossible Pasts” on a radio promo single) is a song from Pink Floyd’s 1983 album The Final Cut. This song was one of several to be considered for the band’s “best of” album, Echoes: The Best of Pink Floyd.
The song, like many others on The Final Cut, is a rewritten version of a song rejected for The Wall, originally to be used in Spare Bricks (an early version of The Final Cut that was an extension of The Wall.) Guitarist David Gilmour objected to the use of these previously rejected tracks, as he believed that they weren’t good enough for release.
[Roger Waters] wasn’t right about wanting to put some duff tracks on The Final Cut. I said to Roger, “If these songs weren’t good enough for The Wall, why are they good enough now?”
— David Gilmour
Despite not appearing on The Wall album, the lyrics of the chorus did appear in the film for said album, Pink Floyd – The Wall, where the lyrics were read by the main character, Pink, in-between the songs “Waiting for the Worms” and “Stop”.
“Your Possible Pasts” also appeared on a 12-inch promotional single entitled “Selections From The Final Cut”, with “The Final Cut” on the B-side. However, despite not being released as a commercial single, the song did receive significant radio play, resulting in the song hitting number 8 on the Billboard Mainstream Rock chart in America.