Somebody else's problem

"Somebody else's problem" (also "someone else's problem") is a phrase used to describe an issue which is dismissed by a person on the grounds that they consider somebody else to be responsible for it. The term is also used to refer to a factor that is "out of scope" in a particular context.[1][failed verification]

Douglas Adams

Douglas Adams's 1982 novel Life, the Universe and Everything (in The Hitchhiker's Guide to the Galaxy comedy science fiction series) introduces the idea of an "SEP field" as a kind of cloaking device. The character Ford Prefect says,

An SEP is something we can't see, or don't see, or our brain doesn't let us see, because we think that it's somebody else's problem. That’s what SEP means. Somebody Else’s Problem. The brain just edits it out, it's like a blind spot.

The narration then explains:

The Somebody Else's Problem field... relies on people's natural predisposition not to see anything they don't want to, weren't expecting, or can't explain. If Effrafax had painted the mountain pink and erected a cheap and simple Somebody Else’s Problem field on it, then people would have walked past the mountain, round it, even over it, and simply never have noticed that the thing was there.

References by others

  • A 1976 edition of the journal Ekistics highlighted the phrase in noting that "One major obstacle to effective bureaucratic action on housing can be called the principle of somebody else's problem."[2]
  • Referring to a team working on a computer programming project, Alan F. Blackwell wrote in 1997 that: "Many sub-goals can be deferred to the degree that they become what is known amongst professional programmers as an 'S.E.P.'  somebody else's problem."[3]
  • Adams' description of an SEP field is quoted in an article of "psychological invisibility", where it is compared to other fictional effects such as the perception filter in Doctor Who, as well as cognitive biases such as inattentional blindness and change blindness.[4]

See also


  1. "INFORMS Miami 2001 Annual Meeting – TB18.2 Minisum Location with Closest Euclidean Distances". Retrieved 2008-06-07.
  2. Seventeen reasons why the squatter problem can't be solved, S Angel, S Benjamin - Ekistics, 1976
  3. Blackwell, Alan F.; Arnold, H.L. (January 1997). "Simulating a Software Project: The PoP Guns go to War". Proceedings of the 9th Annual Meeting of the Psychology of Programming Interest Group: 53–60. Archived from the original on 2008-10-25. Retrieved 2015-03-24.
  4. Sight unseen, Catherine Schulz, The New Yorker, April 13, 2015