zero effect
what exactly was zero effect according to daryl?
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to help solve a problem, first by observation, then by careful intervention - in other words, the Zero Effect.
..."two basic principles: objectivity and observation, or "the two obs"...:
http://us.imdb.com/title/tt0120906/quotes
Jean*
Elektrasai got it right (see above).
The "Two Obs" were the method, not the "effect."