When I was a kid, in the back of a sci-fi magazine I saw a t-shirt advertised, with a picture of the galaxy. It had an arrow pointing towards the edge saying "Y

When I was a kid, in the back of a sci-fi magazine I saw a t-shirt advertised, with a picture of the galaxy. It had an arrow pointing towards the edge saying "You are here." And another arrow pointing to the center, saying "All the action is here."