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Well, I think you can't avoid the fuzzy, to an extent. For instance, (to take some examples which people care about) if you ask how many civilian casualties there have been in Iraq due to US coalition actions, you might expect there to be some number. But the actual number is pretty hard to determine and also depends an awful lot on how you interpret the various words in the sentence - civilian, US action etc. Pretty much any question of this kind is better answered in a fuzzy way.
Or, better, if you want a yes or no question...Are the current models for climate change which warn about the dangers of global warming and human responsibility for that true or false? Well, the question itself probably isn't that helpful (this is a lot like the creationist stuff I hinted at). Because if you are really strict about it, you will probably answer "false" since the models aren't perfect...but that it obviously an unsatisfactory sort of answer, since perfection isn't really that useful a standard.
And this is commonplace, even in fairly simple examples, especially those to do with human affairs. Sure, there are lots of questions where answering true or false makes sense, but also lots where it gets more complicated. (Even math has some odd murky stuff that makes it less clean cut than people think.) |
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