First, let’s get this out of the way. The title of the episode does have an interesting definition. Annees folles refers to the 1920s, according to Wikipedia.
So the title of the episode is a fancy phrase to describe the park that Maeve and Caleb find themselves in, thanks to Charlotte’s invitation last week.
Benard’s return also thrust us right back into early Westworld, with images of the wolf and the white horse that viewers used to make so many theories about.
One thing I thought was especially interesting was how once Bernard returned to the real world, the music that played for some of of his scenes had a distinct Rehoboam feel.