The same thing we've always done: pattern matching based on characteristics with fuzzy boundaries. Cladistics is useful as a way of classifying things for biolo

The same thing we've always done: pattern matching based on characteristics with fuzzy boundaries. Cladistics is useful as a way of classifying things for biologists, but not very useful in day-to-day life. e.g. if someone says "let's go sit under those trees", or "let's chop down some trees for firewood", replying that there is no such thing is a tree is not a very useful response.