9 Details anda Might Have Missed On The saat Season Finale Of 'Westworld' 

9 details you might have missed on the second season finale of 'Westworld'

Evan Rachel Wood as Dolores on the "Westworld" season two finale.

Warning: Spoilers ahead for the season two finale of HBO\'s "Westworld."

The second season finale of HBO\'s "Westworld" introduced new mind-bending turns to an already complex story (and timeline). From the violent revelation of Dolores disguised as Charlotte Hale to a significant end-credits scene you might have missed, the 90-minute episode was packed with major moments.

Keep reading for a look at nine of the smaller details in the finale you might have missed.

When Dolores and Bernard entered the Forge, we learned about a new data copying system.

Each guest\'s data code was transcribed into a book by a robotic arm. The first book we see belongs to the code for James Delos, and it was stationed on an old-fashioned music stand.

This is a callback to a quote from Dr. Robert Ford on the first season finale.

"An old friend once told me something that gave me great comfort," Ford said. "Something he had read. He said that Mozart, Beethoven, and Chopin never died. They simply became music."

When Dolores flipped through one of the books, you can see how the markings of data look just like sheets of music on a player piano.

Dolores looks through one of the guest logs in the Forge library.

Just as Ford became music, the guests who visited the park have become music. This little detail was shared on the "Westworld" subreddit by user Kotn3l.

For comparison, here\'s the player piano sheet music shown in the weekly opening credits on "Westworld."

The codes were hiding in plain sight all along.

Forge-Logan says "the truth is that a human is just a brief algorithm — 10,247 lines. They are deceptively simple. Once you know them, their behavior is quite predictable."

Dolores was able to quickly scan and memorize the humans\' algorithms in order to give herself an advantage over the species (aka the weapon she had been seeking).

Speaking of those books, there were familiar names on several — and a few mysterious people we could see in the future.

The legible names include Karl Strand (the Delos head of operations who Dolores killed later on the episode) and Charlotte Hale. There\'s also Grace Lee, Cassius Tolle, Andrew Garcia, Art Chambers, Ingrid Sanchez, Chian Ming, John Gallagher, Lawrence Wrathchild, and Frank Novak.

Those names will be good to keep in mind as season three unfolds, in case a host-human copy of them wind up in Dolores\' company.

The scotch that Logan was drinking during his last conversation with his father is the same kind William later brings to the host version of Delos.

During the memory Bernard and Dolores see of Logan\'s last interaction with James Delos, he\'s drinking Scotch straight from the bottle.

William, in what seems like a cruel gesture, brings a bottle of that same Scotch to Host-James during their fidelity tests.

James Delos holding the Scotch bottle William brought.

Though season one offered plenty of evidence as to older William\'s black-hatted nature, the second season of "Westworld" cemented just how discompassionate William truly was.

We could give him the benefit of the doubt and say William didn\'t know it was the same Scotch, but if he\'s testing Host-Delos then he had access to all of his most important memories — and that final conversation with Logan was a key aspect of his life.

Another intriguing Forge detail was the multiple scenes of Maeve in the background during one scene.

Maeve and Felix were in one of the rooms behind Forge-Logan.

We saw Maeve and Felix, as well as a recreation of the day Maeve\'s programming malfunctioned after William murdered her and her daughter in the park.

The Forge wasn\'t tracking host data — that was all in the now-destroyed Cradle. But we know it was logging the Delos employees.

Felix, Sylvester, and Maeve in the real Mesa on the first season.

Seeing these scenes in the Forge likely means there\'s a coded copy of Felix, Sylvester, and other human Delos employees like Elsie.

In one of the episode\'s better moments, Lee Sizemore faced his own death with a throwback to the pilot episode.

Lee telling Theresa about the speech on season one, episode one, "The Original."

On the very first episode of the series, Lee wrote Hector a new speech for a Mariposa narrative.

"I\'ve also punched up the speech he gives after robbing the saloon," Lee said. "It\'s chilling, you\'ll see."

But Hector was killed before he could deliver the speech, much to Lee\'s dismay.

"Maybe you\'ll get to your speech next time," Theresa told him.

During the conclusion to one of the show\'s most surprising character arcs, Lee delivered the speech with gusto.

"You wanted me? Well let this be a lesson. And the lesson is — if you\'re looking for a reckoning, a reckoning is what you\'ll find. If you\'re looking for a villain, then I\'m your man. But look at yourselves. This world you\'ve built is bound by villainy. You sleep on the broken bodies of the people who were here before you. Warm yourselves with their embers. Plow their bones into your fields. You paid them for this land with lead, and they\'ll pay you back in full. You wanted me? Well all I could say to that is here I f------ am!"

Since Hector was designed with a link to the Native hosts, Lee\'s speech takes on significant meaning when you apply it to the way Native hosts (and real people) were treated in the history of the park and the real world.

Remember the "virgin" hosts Costa mentions finding on episode five? Those were the hosts who made it into the Valley Beyond.

The hosts\' minds entered the Valley while their bodies remained behind.

Back on the fifth episode, in the flash forward, we saw Costa explain that a third of the hosts found in the flooded valley contained no data. It was a strange anomaly he couldn\'t explain, and no wonder — those hosts had their consciousness transmitted into the newly made Valley Beyond inside the Forge.

Bernard leaving Arnold\'s house at the finale\'s end.

The song\'s use has several meanings. First, the presence of Radiohead is a callback to the first season when two Radiohead songs were used for key scenes (including the finale).

Second, "codex" is the Latin term for what were essentially the earliest books. This links back to our earlier reference of the human code books in the Forge library, but also to the very last line of the episode.

"We each gave the other a beautiful gift," Dolores says to Bernard. "A choice. We are the authors of our stories now."

You can read the full list of piano covers and songs used on "Westworld" here.

Last but not least, there was an end-credits scene that showed an important flash forward in time.

This isn\'t a human William, but he\'s not pure host either.

As reflected on INSIDER\'s comprehensive timeline of events, the post-credits scene between a Host-Emily and a copy of William takes place in the far future.

As Katja Herbers (Emily) explained to INSIDER, this version of William we see isn\'t a human or a host but "something else entirely." And as co-creator Lisa Joy also told the Wrap, this scene takes place at a point in the future where the roles are reversed between hosts and humans.

Read the explanation of this end-credits scene in our deep dive into its meaning here.

For more on the "Westworld" season two finale, follow all of INSIDER\'s coverage.

SEE ALSO: An essential timeline of every important event on 'Westworld'

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