> Surely that is the best definition possible?
Obviously the best one which has appeared in this topic.
> Defining is what humans do.
Some computer programs can do defining also, so I do not recommend you to go to some fields of an absurd.
> Perhaps asking why humans do what they do yields better answers?
I think the answer will be "because they can", but I have asked HN just. Let's see, what answers will this question yield? [1]
[1] https://news.ycombinator.com/item?id=31457736