It’s been a long time coming, my explanation of what “Dieselpunk” is and why it’s the most important genre of them all. And since I’ve been asked this question a lot, I have a lot of practice and because of the work I’ve done, I’ve become an accidental authority on what is, and what isn’t dieselpunk. I’ve been a dieselpunk long before there ever was a word “dieselpunk,” and I’ve seen many other names for it come and go along the way, too. But for now, since "Dieselpunk" is the name of whatever “this” is, and it doesn’t look like it’s going to switch anytime soon.
So, here it is - the answer to the question, "What Is Dieselpunk?"