"Everyone", in common language, is not equivalent to the mathematical "all elements in the set". It just means "almost everybody, excluding very few people that

"Everyone", in common language, is not equivalent to the mathematical "all elements in the set". It just means "almost everybody, excluding very few people that might as well be statistical error". Actually, even 95% of the people qualifies as "everyone" for all practical purposes. You might want to take a look at this: http://tirania.org/blog/archive/2011/Feb-17.html http://tirania.org/blog/archive/2011/Feb-17.html