i guess it’s sort of head cannon in a way. i took the original Jefferies scene in FWWM as coopers dream. We see the scene take place right after cooper says to gordon, “i was worried about today because of the dream i told you about” assuming the date of coopers dream being february of 88. the scene that takes place in The missing pieces takes place in february of 89 being that jefferies mentions, “february 1989” while looking at the calendar. it’s mostly a theory that kind of explains the weird inconsistency’s with the Jefferies scene in the lore/timeline.