Last night I was talking to a friend about degrees of separation; I theorized that just through the simple process of aging, our network of friends and acquaintances keeps expanding to the point where the degrees of separation are trivial. Last Saturday at the Black Cat were a trio of local bands that I have all sorts of close connections to. In fact I have met members of all of these bands before, but I can’t say I really know them. It’s such a small town, DC. You can’t go anywhere without trip…