OXA Machine

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The Odyle Xenotaph Anarchive, commonly known as the OXA Machine or OXTA, is a device that is said to be capable of clairvoyance, both by revealing past events and by supposedly prophesying of the future. Its latest iteration was destroyed by the Cabal Empire when the Psions were conquered and enslaved. Centuries later, it was rebuilt by Freeborn Otzot.

History

The OXA Machine is of unknown origins, having been built, destroyed, and rebuilt many times throughout history by a variety of different alien species. Umun'arath described it as a "black box for galactic civilizations", a way for civilizations facing destruction to record their demise and pass on their knowledge to others. Its oldest records contained information about the Hive.

At some point in the distant past, the Psion race became the latest to possess the OXA Machine. This was destroyed when the Psions were conquered by the Cabal Empire. Centuries later, a brilliant Psion scientist known as Otzot recreated the machine on a Psion moon called Brand. Umun'arath dispatched a Cabal armada to bomb Brand in order to destroy the device once again, but was ordered by Emperor Calus to stand down. Rather than punish Otzot, Calus rewarded her, and the OXA Machine was integrated for the Empire's use.

At some point, the OXA Machine led the Cabal to investigate the planet Aark, whose inhabitants had been annihilated by the Hive.

Calus claims to have "interpreted the mad prophecies" of either the remade or original OXA Machine, one of which detailed in vague terms the long-ago rise of the Hive under Oryx, the Taken King. Various elements of Hive history relayed by the machine would subsequently make their way into Cabal mythology and culture; for example, the Cabal learned of the Hive word caiatl, which expresses the concept "it may not always go as it needs to go," from the OXA Machine, and it became the name of both a star and later the Princess-Imperial Caiatl, daughter of Calus.

During the Midnight Coup, Otzot harnessed the OXA machine to transmit plans to her co-conspirators in secret.

The Vex kept information about the OXA machine accessible through the Insight Terminus on Nessus. This information was accessed at unknown times by both Otzot and a simulated instance of Ishtar Collective scientist Maya Sundaresh. After the Red War, Kargen, the Technocrat led an offensive on the Insight Terminus, attempting to empower a prototype of the same machine.

It is later mentioned again by Tazaroc, the Sun Eater in the Season of Dawn where she describes it to have "troubled ramblings" and is a "mad thing", suggesting The Sundial was superior to the OXA in its foretelling and predictions.

During the operation to stop the Witness and prevent them from completing the Final Shape inside the Pale Heart, the Guardian would help Micah-10 to do what they could to heal the Traveler and helping to locate several lost Ghosts. One of these missions involved finding and saving Bean, a Ghost that was investigating the ruins of the Exodus Black on Nessus. Once they got close to the location, Micah, Cayde and the Guardian would detect a detachment of the Red Legion despite the fact that their leadership had been dismantled for some years, leading the team to think that a Cabal warlord was acting on their own or worse they were following the Shadow Legion. Overcoming their defenses and advancing deep into the planetoid toward the Terminus, the Guardian would encounter an exact copy of Kargen, the Technocrat, that they had killed in the past. They would pursue and kill him, to prevent the Psion Flayer from tapping into the Vex Network again, thus discovering that the Cabal cloning technology was capable of even cloning Psions. After recovering Bean's signal, the Ghost would discover that Kargen's clone was once again trying to access Vex data on OXA, the Psion prediction machine that was able to see the future in branching paths. Micah-10 notes that OXA sounds very similar in function to The Device created with Vex data and technology used by Future War Cult, and the Ghost becomes hesitant as, based on what data Kargan was looking for, he can't say for sure that the two machines aren't of the same design. Ghost further reveals that Kargan was also trying to access the Sol Divisive's research on the Veil, but the Ghost doesn't know how they all connect. Even if they could not do that, they could discover that the orders for this Red Legion squad were coming from Otzot, and very recently, leading the team to think that there might be defector branches within the Shadow Legion not loyal to the Witness and that the Psion defectors siding with the Dark Fleet were just creating a deception to cover their own operations. Seemingly trying to find this data to plot potential outcomes so they can plan for Humanity's success, Kargen was stopped and blocked from the Vex Network by Maya Sundaresh.

Trivia

• "Odyle" is another word for the "Odic force", a hypothetical "life energy" that was proposed to exist during the mid-19th century.
• "Xenotaph" is a pun on cenotaph, a symbolically empty tomb commemorating a person whose remains are elsewhere. Cenotaph is a compound word in Greek combining kenos (empty) and taphos (tomb). Xenotaph replaces kenos with xenos (literally foreigner or stranger, though commonly used to refer to aliens), so it can also be read as "alien tomb".
• The acronym "OXTA" is an anagram of Taox, the name of an ancient proto-Hive female who once served as mentor to the children of the Osmium King on Fundament, and who survived for millenia after the rise of the Hive before vanishing. As much of the information derived from the OXA Machine by the Cabal seems to relate to the Hive specifically, combined with the above etymology of "empty (alien) tomb", this may hint at a connection between these two entities.

List of appearances

• Cabal Booklet (First mentioned)
• Destiny 2: Warmind (Mentioned only)
  • Season of Opulence (Mentioned only)
  • Season of Dawn (Mentioned only)
  • Season of the Wish (Mentioned only)
  • The Final Shape (Mentioned only)
• Beloved (Mentioned only)