Neroon's hearty off-camera laugh at Marcus' reply was quite genuine, though not to the reply itself. Jason Carter said a joke off-camera while cameras were rolling, and while still in character, John Vickery gave a good laugh. J. Michael Straczynski liked it so much, he kept it in the scene.
J. Michael Straczynski is said to be willing to personally apologize to every fan for this episode, acknowledging it to be one of the poorest of the series.
Jeremiah's rambling about the universe breaking itself down to individual souls is not as crazy as he sounds. His belief mirrors the Minbari religion as explained by Delenn.
J. Michael Straczynski stated later that the good episodes didn't take too long to write, maybe a day or two. This episode took two weeks, making it one that he, himself, didn't like very much.
Robert Englund, as Jeremiah, in his opening speech, flicks out the fingers on his right hand in exactly the same way he does when playing his most famous role, Freddy Kreuger.