San'Shyuum

The San'Shyuum, traditionally known by humans as Prophets, are a sapient species that acted as the Covenant's main political and religious leaders. Despite their human nickname, only the highest social class of the San'Shyuum were actually known as Prophets, with many occupying lesser ecclesiastic or ministerial positions while the majority were civilians.

The San'Shyuum have long been a species in decline, due to their exceedingly small gene pool caused by their ancestors' historical migration away from their homeworld Janjur Qom aboard the Forerunner keyship Anodyne Spirit. Over the generations, this has led to considerable physical degradation among the species. Though medical technology has been developed to remedy this to an extent, it can ultimately do only so much. The San'Shyuum were long the least numerous species in the Covenant, with there being around 20 billion San'Shyuum in the hegemony by its later years, a fraction of the other Covenant species' populations. As most lived on the fallen High Charity, this number may now be as few as 23 million.

Origins
The San'Shyuum hail from the planet Janjur Qom in the Mowas system, evidently located somewhere in or beyond the trailing reaches of the Orion Arm. Traditionally, the planet is assumed to have been destroyed by the local star's supernova some time after the Covenant's formation, with the Reformist San'Shyuum claiming to have fled to escape their world's impending doom. As Janjur Qom's location is lost from any known star charts, this may be impossible to verify. Some suspected that the early San'Shyuum lied about the destruction of their homeworld to cover up inconvenient questions about their origins and possibly build up the importance of High Charity as their new homeworld, but this too is difficult to confirm. However, it is certainly unlikely that the Forerunners would have re-seeded the San'Shyuum in a system whose star was about to go supernova within the next 100,000 years, as the star's state would have been quite apparent to them. Even if untrue, it is also possible that over the generations, later generations of Reformists came to believe the narrative their ancestors had told them about their origins.

The San'Shyuum maintain that they first achieved a starfaring status prior to the activation of the Halo Array, and had regular dealings with the Forerunners in their prime. Evidence of this in their system was abundant: the most overt being the enormous keyship partly embedded in the crust of Janjur Qom. As they developed astronomy, they found that one of their system's further-out celestial bodies was no planetoid at all, but an enormous derelict starship - one they assumed had been created by the same civilization that built the enormous vessel upon their world. Believing the vessels to be of divine origin, the early San'Shyuum began to worship the ships' makers—the Forerunner—as gods. The mushroom shape of the orbiting vessel, which the Reformist San'Shyuum would later find out had been called the Deep Reverence, left a lasting impression on the San'Shyuum; the holy city of High Charity itself would later be loosely modeled in its image. Other irregularities existed around the system: an enormous array of small artificial constructs, previously thought to be asteroids, orbiting at several AU outward from Janjur Qom. Further evidence still of past San'Shyuum glory was the Mowas system's second planet, Quam Awat, which clearly showed signs of ancient habitation. This led to many groups of San'Shyuum (most notably those living in visible distance of the colossal keyship) developing a cultural narrative of themselves as the Forerunner-Gods' chosen people, ones destined to reclaim the ancient civilization's legacy.

The San'Shyuum's ancestors were were arboreal and primatoid in body plan. They subsisted on a primarily herbivorous diet, though they would occasionally supplement this with insects, worms and seafood. Rather than small hunter-gatherer tribes, the proto-San'Shyuum gathered in large "herds" that developed well-defined social hierarchies fairly early on. As with humanity, the development of organized civilization began with agriculture, which quickly led to the creation of the first large civilizations with sophisticated cultures, religions and well-refined farming techniques. The San'Shyuum meta-civilization plateaued at this stage for several millennia, with a handful of large, very stable and culturally sophisticated preindustrial empires dominating much of Janjur Qom's continents. This was the "golden age" of San'Shyuum philosophy, culture and astronomy. Once the status quo changed, advancement happened rapidly. A cascade of rapid innovations led to an Industrial Revolution and an Atomic Age civilization within less than two centuries.

The rapid development of global telecommunications ensured the propagation of ideas and culture, and within a few short decades — and after a pair of large-scale wars — much of Janjur Qom was under a relatively stable and unified socio-political structure. Not long afterward, the radical Reformist faction arose to challenge the status quo, sparking the War of Wills. The Reformists managed to fortify themselves into the Forerunner Dreadnought, and the Stoics could do little against them out of fear of damaging the holy vessel. Fearing that the Stoics may soon deploy biological weapons against them, the Reformists eventually made the decision to launch the keyship. Even though the ancient ship's nose and two of its prongs were buried in the very bedrock, the keyship's engines were mighty enough to forcibly dislodge the ship and a large chunk of the planet with it, with parts of the ship still embedded as it lifted off, carving an enormous scar into the planet's face in the process. Almost immediately, the crater flooded, becoming a new sea later known as the.


 * Mendicant Bias' role; Was the Oracle active at the start, or was it only roused after the Reformists took off? Bias allied with Reformists for its own ends, i.e. finding Reclaimers - may've even convinced them they were the Reclaimers to get what it wanted? Bias was also shackled at this point by security programs and may have manipulated the San'Shyuum to give it more power. Still, other security constructs on the keyship kept the MB shard from completely taking over; San'Shyuum may've also been wary. Perhaps there was also a constant tug of war between the ship's security constructs and MendyB, who'd be trying to advance some opaque agenda of his own yet retaining limited control of the ship. The Dreadnought's own ancilla was locked in some kind of stalemate with Mendicant's shard, and then the two degraded AI trying to play the San'Shyuum against the other. Mendicant inadvertently helped create the Covenant religion and after some particularly egregious blunder, either just fell silent or was later convinced by a San'Shyuum monk to take a vow of silence. Also, what MB originally said may have been mangled over time, some of it perhaps intentionally twisted by the Reformists' leaders to fit a narrative that suited them.
 * Reformists also accessed garbled versions of some terminal dialogs + other logs - distrust of Bias hence? Possible compartmentalization, not all terminal dialogs known.
 * Stuck around in home system for some time. Visited Deep Reverence, possibly other Forerunner installations, e.g. remains of quarantine swarm (though parts may have been dismantled during reseeding). Also grabbed Huragok from maintenance stations in system's outer moons.
 * Couldn't get slipspace drive to work for a while; the very concept of FTL travel was a cultural blind spot because the San'Shyuum weren't yet at the stage where cultures usually start understanding slipspace. Possibly cruised around in sublight / relativistic speeds for a while, so time dilation applies - even though this was 2000+ years before Sangheili contact, for them it was just decades of subjective time? Then at some point they figure out the slipspace drive - or disable safeties put into place by Forerunner automata during reseeding?
 * Mutiny / Mutinies on the ship?

The Covenant
No JJ Qom return trip - planet's location already lost by then? Would've otherwise just kept coming for more healthy females, esp. with better technology.

Great Schism
The San'Shyuum have always been the least populous species in the Covenant, and the Great Schism may have reduced their total population to as few as 20 million individuals.


 * Perception by ex-Covenant, especially Sangheili & the Many Games of Goshin-kir, figureheads, and Truth/Concord split + reconciliation

Biology
Of the Covenant species, the San'Shyuum most resemble humans, with a mammal-like biology, relatively similar digestive and reproductive systems and arboreal ancestry, though the San'Shyuum are evolutionarily closer to their tree-dwelling ancestors than humans are to theirs. Prior to the species' regression resulting from the Reformists' self-inflicted genetic bottleneck, healthy San'Shyuum are estimated to have been slightly below human physiological capability on average, with their homeworld having a gravity of just under 1g. Today, they are much more frail than humans or any of the major Covenant species.

San'Shyuum mature slowly but also live long lives. After a long gestation period, their childhoods last up until their twenties, and they typically reach reproductive maturity by 30-35 years of age. This slow development is hypothesized to be due to their complex brains, which continue to grow and develop for much of their lives even as the body withers, though only up to a point. Even today, many young San'Shyuum (aged ~45 and below) are able to remain relatively fit, though physical deterioration and senescence begin to set in earlier and earlier with each new generation. Life extension therapies alleviate this only to a point, and even with prolonged lifespans and gene therapies, most San'Shyuum are born with various handicaps and congenital illnesses which slowly cripple them as they age.

As a result, few San'Shyuum past forty years of age are able to walk unaided in standard gravity, and use gravitic aids such as antigrav belts as both a safety measure due to their brittle bones and to be more comfortable overall. As they age, they near-invariably require an antigravity chair, though often these are also status symbols for their users and are treated much like a piece of clothing. In their private estates, San'Shyuum frequently turn the gravity to much lower than standard, with elder San'Shyuum being most comfortable at fractions of a g.

The San'Shyuum's necks grow longer with age. Modern San'Shyuum begin to hunch over since fairly early on, though it is evident that ancient San'Shyuum used to have far more upright necks and backs.


 * Research into life extension + bioaugmentation (Prelates part of a trend to improve genome)

Psychology
The San'Shyuum's position at the Covenant's leadership is not entirely arbitrary. The species is highly intelligent and likely fairly unique among the currently active species in their symbolic and abstract thinking capabilities, along with an innate aptitude for grasping complex social relations and various large-scale systemic phenomena. Their Dunbar's number equivalent has been estimated to be much higher than on humans and many other species, perhaps being as high as 1,000. Their linguistic, mathematical and spatial abilities are also very developed. The San'Shyuum generally make excellent administrators, philosophers, scientists, mathematicians, physicists, theologians, scholars, bankers, anything that requires complex systemic thinking. By human standards, median San'Shyuum intelligence is estimated at around 140 on the classical IQ scale; prior to the species' long decline, it was likely much higher. This contributed to their rise as the Covenant's overall leaders, as the Sangheili would concede that the San'Shyuum were demonstrably more gifted at political matters. Unfortunately, this also enables them to use these natural talents for own their ends by manipulation and scheming, though the San'Shyuum's modern reputation as schemers largely stems from the malign activities of the Prophet of Truth and his associates along with a small handful of notorious historical examples.

Culture
Modern San'Shyuum culture enshrines vitality, fertility and youthfulness, as those things are in short supply among the species. Despite this, the species is overwhelmingly gerontocratic overall, with age generally (if not always) corresponding to a higher political and religious position. Part of this is due to the fact their brains keep growing as they age, though this effect may have been exaggerated.

The San'Shyuum are relatively egalitarian in terms of gender roles, though there is still a clear trend toward males in high leadership positions. Part of this is due to the species' gene-pool issues and eugenic policies, meaning that fertile females near-universally spend their prime years in procreation-related duties. Even as they may be able to access political and religious posts with age, male San'Shyuum will always be many steps ahead of them. Political careers are a common option for individuals on the, though barren or genetically unfit females in particular face widespread prejudice from other San'Shyuum. As a result, they are more likely to become monastics in various holy orders rather than being part of the mainline clergy.

Social hierarchy
While Prophets and religious officials only small portion of population, the San'Shyuum by default occupy the highest tiers of the Covenant's byzantine caste system, with civilian and low-ranking San'Shyuum roughly corresponding to the Sangheili equivalents. Most adult San'Shyuum civilians outside the hierarchy also occupied some form of social or religious role, though these were often mere sinecures more akin to hobbies the San'Shyuum took upon themselves to keep themselves stimulated.

High-ranking San'Shyuum such as Minor Prophets, Ministers or Minor Ministers were known as legates when assigned to a Covenant fleet or some other military formation. Legates served in a religious and political advisory capacity, though in practice they had considerable power over the campaigns carried out by the fleets to which they were assigned.

High Ecclesiastics
 * High Prophets
 * Minor Prophets
 * Cardinals
 * Ministers
 * Vice Ministers
 * Minor Ministers
 * Consultors
 * Definitors
 * Postulators
 * Ministry staffers / Clerics

Ordinaries
 * Archbishops / Archimandrites
 * Bishops
 * Provisors / Exarchs
 * Palatines
 * Prelates
 * Scholasters
 * Archpriests
 * Priests & Celebrants
 * Almoners
 * Stewards / Servers / Initiates

Judiciary
 * Senior Adjudicators
 * Adjudicators
 * Notaries

Specialists
 * Knowledge-priests / Discovery-priests
 * Techaries / Apotecharies / Nanotecharies / Cryptotecharies
 * Chirurgeons
 * Scribes / Annalists / Chroniclers / Archivists

Monastics
 * Hieromonks (e.g. Philologists)
 * Periti
 * Abbots / Abbesses
 * Canons / Canonesses
 * Ruminants
 * Mendicants

Technology
By the time of the Reformists' departure, the San'Shyuum civilization on Janjur Qom achieved a late Tier 5/early Tier 4 level of technology, roughly equivalent to that of Earth's 1940s-1960s with the largest difference being the San'Shyuum's comparatively advanced communications networks, comparable to the 1990s Internet. The "information explosion" was extremely quick, going from semaphores to telephones to instant global information transfer and wireless networks within less than a century. The San'Shyuum of this time had fission power, rudimentary communication satellites, rocket-powered engines and various medical conveniences. Their home system's various irregular features prompted the San'Shyuum to develop advanced telescopes and astronomy fairly early on as well in order to study the myriad "heavenly enigmas". Though missions to the Deep Reverence and the other planets, including the moon Plaon and the planet Quam Awat had been planned, trans-orbital spaceflight had not yet been attempted before the Reformists' flight. Little can be guessed at as to how the planetary civilization developed since.