In response, I think much of that impression is illusionary. There's plenty of dead air in the first Threads and plenty of stuff that has since proven false (much of it from yours truly). The pace of newly discovered material and never-before-discussed topics has inevitably slackened, but new stuff continues to come to the surface, like new concept art from Ken Anderson and Sam McKim just in the last several pages. And no one knew that McKim had even DONE any concept art for the interior before. New photos surface, old mysteries are solved, etc.