White City is designed for One Session Gaming.
The Game wants to have a Beginning, Middle, and End.
It should feel tight, with a deliberate conclusion that was worked for, produced, and satisfying.
Complications and Moments exist to help achieve this goal.
Facilitators juggle a lot of information and White City's mechanics trigger narrative events.
This is built into the game because the pace of a One Session Game is much faster than a 30+ Session Campaign. 
Anyone can hint that "good stuff is on the way," but can you deliver good stuff today?

When the Table Draws a Blank, look to Complications and Moments for Back Up Material.

White City also has a Move called, Moments.
Maybe it's my Zen Thing, but I didn't actually notice I used a term twice, until I was rebuilding Moments for Black City, "Roleplaying in the Shadow of Chicago's Gilded Age."
While there's no foul in discussing adventure moments and mechanical Moments, Gamer's are notoriously pedantic and love to split hairs.
Any conversation that involves "Big M's" and "Little M's" is a Yellow Flag.
Question: How long will I have to explain the difference between Moments and moments?
Answer: Forever, unless I Improve the language!
Mike Martens talks about having a Single Truth, a primary document from which other documents are derived.
If I want to change "Little M" moments to say... "Events."
I need to change, White City Itch, White City (Zine), the Handbook, and Ten Adventures. 
If I want City of Cemeteries to line up, that's another Itch Document, Zine, Handbook, and... Ten Adventures.

I am becoming sympathetic to the Game Designer that decides talking about "Big M and Little M" FOREVER is easier than improving the language of multiple documents.
Except I'm going to change it, because I AM: The Pedantic Gamer!
I recently watched a Plus One Experience that encouraged Designers to revisit their old work and when appropriate, improve that work.
While I consider White City "done-ish."
I also consider White City a living document, open for improvement and expansion.
Therefore, I'm going to go though all my documents and change "Little M" moments to Events, because that improves clarity and make the game better.
Finally, I applied for a Table at Game Expo in January, and the Chicago Comic Expo in March.
Hope to see you there!