On the nebulosity of the concept “exists,” a brilliant explanation by @everytstudies https://everythingstudies.com/2017/09/12/the-big-list-of-existing-things/ … 
@slatestarcodexpic.twitter.com/Xm2IcZPotn
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& another aspect: if sb says 'there are' three kinds of ... , sometimes it translates "so far, up to now, we found these 3" more precisely
Sometimes. Other times it can mean "here's a three-part classification scheme I think is insightful"
Does the family resemblance model require a clear central prototype? My impression was that it doesn't.
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