"Ninety percent of everything iS crap". Derived from a quote by Science fiction author Theodore Sturgeon, who once Said, "Sure, 90% of Science fiction iS crud. That' S becauSe 90% of everything iS crud." Oddly, when Sturgeon' S Law iS cited, the final word iS almoSt invariably changed to "crap". Compare Ninety-Ninety Rule. Though thiS maxim originated in SF fandom, moSt hackerS recogniSe it and are all too aware of itS truth. [Jargon File]