Calvin & Hobbes & Fight Club?

I stole this from [url=http://www.cracked.com" onclick="window.open(this.href);return false;]www.cracked.com[/url], but find it amusing. Was the Fight Club narrator a grown up Calvin?

The boy spent most of his youth playing and fighting a tiger that appeared as a stuffed animal to others. So it would only make sense that he would grow up into a man who (spoilers ahead) would fight himself and Tyler Durden was visible only to himself. (Sort of.)