Warning: Spoilers ahead for the season finale of "Westworld."
The tenth and final episode of "Westworld" season one came with major theory confirmations and some unexpected twists. We even got a peek at a second park design: Samurai (or Shogun?) World. But among the more obvious and striking moments, there were some details and references that called back to past episodes or larger themes.
Scroll down for a look at the 11 moments you might have missed.
We finally learned why Arnold's signature song was Debussy's "Reverie."
Since episode three, the classic Claude Debussy song "Reverie" has played anytime a significant Arnold story was being told. In the finale, we heard it yet again when Arnold played it on the gramophone right before Dolores shot him. It turns out "Reverie" held significance for Arnold's son.
"Charlie's favorite song," Arnold said. "I would play it for him when he wanted sleep."
Appropriate that "Reverie" is used to calm the hosts and seems to be a signal of death. It played again in the finale right as Dolores shot and killed Ford.
Another Ford and Arnold parallel came from their almost-final words.
When Ford said goodbye to Bernard (and explained the gist of his plan) his last words were: "Good luck."
Earlier in the finale we saw Arnold say the same thing to Dolores right before he triggered her programming to kill him. This was a signal to the audience that Ford was about to have his own dramatic exit.
"Pigs in Clover" is the real name of the maze/ball puzzle invented in the late 1800s.
A man named Charles Martin Crandall invented one of the first "ball-in-a-maze" puzzles that took off in America. He called it "Pigs in Clover," and this attention to detail is one of many reasons showrunners Lisa Joy and Jonathan Nolan are such superb storytellers.
We know that Westworld is designed to look like the Wild West of the late 1800s — the same time period "Pigs in Clover" was actually invented in history.
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