Because Fun is Important

Fun. It's important. It's enjoyment, it's learning, it's playful, it's related to sharing which relates to community, I would say it's everything but I just said design was everything (although I'm sure the two are related).

Let's play connect the dots:

1. Because it's fun.
2. Because it is fun.
3. Just for fun.

Which we will give context to with some sources:

1. "Bob, why do these bears play?".... "Because it's fun." (Italics in original.) Stuart Brown's convincing and moving book, Play, from p. 28, about why bears play (the book is about play and much more than bears, which are just a few pages). Brown is an MD and a play researcher; in other words, he's an expert and knows what he is talking about. (A national bestseller.)
2. From a small survey of computer game modders, one respondent's answer to "WHY do you take spend your time and effort into developing an idea on how to make the game better and/or developing some user-generated content?" 
3. The title to Linus Torvalds' book about why he started what became linux and why he codes.

I keep insisting that this is deeply-rooted human behavior and I get academic reviews by people who have no idea what I am talking about, look, people, it's all the same.