sf-isms.a field guide to san francisco slang

adjective · first recorded 1990 · status: emerging

non-trivial

1.The engineer's way to say something will require real work while refusing to sound alarmed. A non-trivial task can take two hours, two quarters, or a proof that does not exist.

At 6:10 someone suggested dinner in the Outer Richmond; the engineer called the 38R non-trivial and ordered Sweetgreen.

01Origin

The word came from mathematics and science, where a nontrivial result is more than the obvious or degenerate case. Hacker culture turned it into an understatement for anything requiring real thought or significant computing power. The Jargon File documented that sense by its June 12, 1990 version, and later editions noted that the thing might be impractical or entirely unsolvable. ([magic-cookie.co.uk](https://magic-cookie.co.uk/jargon/jarg211/jargon.htm))

Software engineers carried the usage into startups, management, transportation, and every other problem they preferred to describe without displaying emotion. Calling a trip to the Outer Richmond non-trivial is authentic SF tech speech, but it is an application of the term, not its origin.

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04See also