¢ Hyper-rational behavior. Infected subjects possess drastically 
above-average reasoning capabilities, which they will use to 
evaluate all information available to them in order to identify 
the course of action that most benefits SCP-3003-1. Affected 
subjects will refuse to consider the value or possibility of not 
supporting SCP-3003-1. While subjects can be conditioned to 
engage in irrational behavior under extreme circumstances, 
rational behavior has always resumed within two weeks. 

¢ Suppression of emotions. While affected subjects are capable 
of experiencing emotions, these are rarely acted on and are 
easily discarded in light of new _ information. Emotional 
displays are often exaggerated. 


SCP-3003-2 cannot reproduce within humans, and most cells do not 
survive longer than thirty days. Full recovery occurs within two years 
of the death of all cells. Regular infusions of SCP-3003-2, or (more 
commonly) the implantation of SCP-3003-1, is necessary for 
continued presence of SCP-3003-2 within the human body. 


SCP-3003-2 is not present in wild populations of SCP-3003-1; 
instead, captive populations of SCP-3003-1 are exposed prior to 
their introduction to humans. 


SCP-3003-3 is composed of genetic humans; physically, they are 
indistinguishable from humans. Experimentation has shown that 
Earth-native humans and SCP-3003-3 are capable of producing 
viable offspring. 


SCP-3003-3 possesses roughly 35% of the genetic diversity of 


Earth-native humans. This is attributable to roughly 460 years of 
systematic selective breeding for several traits that render 
SCP-3003 well-suited to hosting SCP-3003-1 (large stature, high 
levels of adipose tissue, reduced pain response, etc.), as well as for 
overall health, freedom from genetically transmitted illnesses and 
disabilities, and resistance to common infectious diseases. 


As of 2017-03-24, SCP-3003-3's ruling committee has initiated a 
planet-wide project to introduce artificial genes into SCP-3003-3 
over the course of the next thirty years. The stated goals of this 
project are to reduce resource consumption by 30%, preemptively 
induce immunity to Earth-native pathogens, and_ increase 
SCP-3003-1 hosting per-capita tenfold. It is presumed that these 
changes will constitute SCP-3003-3 as a distinct species. 


No members of SCP-3008-3 have been identified as members of 
SCP-1719-1. 


SCP-3003-3's technology, particularly SCP-3003-4, is not fully 
understood by the Foundation. While this is in part due to the 
advanced nature of most of these technologies, SCP-3003-3 has 
withheld various scientific and engineering advances as an incentive 
for the Foundation to make Earth habitable for SCP-3003-1. Full 
catalogs of SCP-3003-3's advances in medicine, materials science, 
and manufacturing are accessible in Appendixes 3-R, 3-S, and 3-T 
respectively. 


SCP-3003-3 is capable of harnessing, in one way or another, one 
tenth of the energy that falls on it from HIP 56948. Most of this is 
harvested via wind, solar, and tidal power plants located in 
SCP-3003's deserts and oceans; in situations where this energy is 
unavailable or inconvenient, it is often supplemented with locally- 
produced geothermal and nuclear fusion power. SCP-3003-3 has 
developed several viable methods of fusion power, though none are 
as cost-effective as solar power under optimal conditions. 


SCP-3003-3 has developed exascale quantum computers that are 
used to process massive amounts of data to devise and implement 
public policy. While SCP-3003-3 claims to have developed true 
artificial intelligences using these computers, it does not currently 


permit their use or creation for reasons that have not been divulged 
to the Foundation. Extensive questioning on this matter has 
uniformly been met with hostility. 


The taboo against artificial intelligence has also prevented 
widespread automation except in industries where returns are 
exceptionally high; additionally, while SCP-3003-3 has the capability 
to deploy advanced robots to assist in most tasks without violating 
this taboo, almost none are used. 


Crops produced by SCP-3003-3 have been extensively genetically 
engineered for hardiness, disease-tolerance, space efficiency, 
resource efficiency, and nutritional value. To this end, only thirteen 
species are cultivated for food, all being sessile photosynthetic 
organisms analogous to plants. Various methods of processing and 
combination are used to create staple foods for SCP-3003-3 with 
properties suited for different situations. 


Various satellites have been launched by SCP-3003-3 for purposes 
of research and communication. SCP-3003-3 is capable of, but 
rarely conducts, space travel; in this area, its technology does not 
substantially exceed that available to the Foundation. All other 
planets orbiting HIP 56948 have been visited by SCP-3003-3 on 
numerous occasions, with eleven individuals permanently living in 
an artificial habitat on the third planet from the star. 


SCP-3003-4 


SCP-3003-4 is a facility capable of creating wormholes between an 
apparatus at its center and any other point in space. SCP-3003-4 
occupies 113km? of an otherwise unused polar region of 
SCP-3003. Most of this is dedicated to the creation and transport of 
several forms of exotic matter, as well as creating brief laser pulses 
in the 1049 watt range, in order to stabilize wormholes for longevity 
and traversability. For reasons that are currently unclear to the 
Foundation, this has no effect on the targeted location other than the 
linkage of the two locations. 


Each activation of SCP-3003-4 requires approximately one 
zettajoule (102! joules) of energy; in comparison, Earth's annual 
energy consumption is roughly 0.5 ZJ, whereas SCP-3003-3 


consumes about 833 ZJ yearly. SCP-3003-3 has been using 
SCP-3003-4 primarily to examine planets they've identified as 
candidates for expansion, though they have also explored the 
possibility of using it for resource collection. 


Full anthropological studies of SCP-3003-3 are currently being 
conducted. Information in this document is intended to provide an 
overview of SCP-3003-3's organization. 


Overview 


SCP-3003-3 speaks a language identical, apart from various 
differences in vocabulary, to Dutch. No other historical language 
spoken on SCP-3003 has an equivalent in Earth's history. No other 
languages are extant on SCP-3003-3. SCP-3003-3 has one 
dominant culture into which all members are inducted, with minor 
variations present between areas of different population density, 
climate, and industry. 


Prior to the appearance of parasitic SCP-3003-1 about 500 years 
ago, SCP-3003-3 was a mundane mercantile society. Post- 
exposure, SCP-3003-3 either destroyed or assimilated most of the 
~7,000 other cultures that existed at the time; the remainder were 
wiped out during an ecological collapse in 1712 resulting from 
SCP-3003-3's indiscriminate elimination of keystone species that 
preyed on SCP-3003-1, among other factors. 


95% of SCP-3003-3 live in urban areas; these cities average 30 
million in population, and are generally in locations with mild weather 
that are not near coastlines, active volcanoes, or active tectonic 
plate boundaries. Cities built by SCP-3003-3 are largely enclosed, 
with a single nearly flat surface on which food crops and certain 
biomaterials are grown. Cities are designed with the intent of 
maximizing productivity; a secondary concern is the lining of various 
surfaces with a material that mimics the appearance and texture of 
SCP-3003-1, which functions as a form of public entertainment. 


+ Commentary 


Several of my colleagues have been forced to 


relocate to rural areas within days of stationing 
inside one of SCP-3003-3's cities. The various 
corridors and "streets" of SCP-3003-3 are 
somewhat narrower than the hallways of an 
office building on Earth, and contain many 
more people. Visitors from Earth are at risk of 
developing claustrophobia and/or 
agoraphobia. 


Visual markers of one's location are 
additionally infrequent, as members are 
generally expected to know exactly where they 
are at any given time. Close attention must be 
paid in order to avoid getting lost. 


- Preliminary report from Dr. Shah 


The remainder of SCP-3003-3 live in rural areas, and are tasked 
with monitoring and maintaining SCP-3003's climate and biosphere, 
as well as attending to supplemental agriculture, mining, and 
materials production. The organization and architecture of any rural 
community is tailored to the primary occupation(s) of the community 
in question. 


Living conditions 


SCP-3003-3's young are raised communally in groups of 100-300 by 
health and education specialists. Members of SCP-3003-3 are first 
implanted with an instance of SCP-3003-1 between 15 and 18 
months of age, depending on size and health. Additional instances 
of SCP-3003-1 are allowed to parasitize SCP-3003-3 as they grow, 
until the age of 17, at which point each member hosts roughly one 
instance per three kilograms of body weight; past this point, 
additional SCP-3003-1 are added only to replace dead instances. 
Regular medical intervention is necessary to mitigate the adverse 
effects associated with this degree of parasitism. 


+ Commentary 


Earlier today, | tripped over a cable while 
observing some factory workers. Shortly 


thereafter, two nearby SCP-3003-3 members 
began to escort me to the nearest medical 
facility. Initially they were confused by my 
unwillingness to join them, but were eventually 
convinced that | did not need assistance, and 
explained the reasoning behind their actions. 


Apparently, inattentiveness, fatigue, and stress 
are symptoms of a disease normally resulting 
from excessive Marce_ infestation. Any 
"unusual" behavior on my part, and on the part 
of all other Foundation personnel, has been 
surreptitiously uploaded to a database tracking 
our health and activities; tripping over the wire 
was apparently enough for me to be "flagged." 
| hadn't even noticed that | was being watched. 


- Field notes of Dr. Hernandez 


Each member of SCP-3003-3, beginning in childhood, is regularly 
subject to a variety of evaluations of its mental and physical 
capabilities and talents. This information is used to generate 
assignments regarding occupations, formal education, living space, 
and health needs. 


Adults spend an average of ten hours per day performing their 
occupation(s), with the remainder spent performing _ self- 
maintenance (resting, eating, exercising, etc.), receiving education 
on a variety of topics, and partaking in several forms of 
entertainment. This entertainment revolves almost exclusively 
around exposure to SCP-3003-1-related stimuli; common forms 
include touching the lumps produced by their parasitism (either on 
one's own body or on that of another), listening to audio recordings 
of SCP-3003-1 swarms, full-body enclosure in garments that 
simulate SCP-3003-1's surface texture, or visits to SCP-3003-1 
enclosures. 


+ Commentary 


Wearing prosthetic "“Marce lumps" is 
somewhat of a mixed blessing. While the red 


bandana and directive from the Ruling 
Committee are enough to prevent members of 
SCP-3003-3 from hauling me in for organ 
harvesting on the spot, the prostheses have 
drastically mitigated the undercurrent of 
hostility and casual disrespect that is reserved 
for individuals that don't host SCP-3003-1. 


On the downside, several times per day | am 
casually rubbed up against by someone who, 
for lack of anything better to do, is entertaining 
themselves with the sensation of their lumps 
against mine. | understand that saying we 
wanted to experience this is our excuse for 
getting the prostheses in the first place, but the 
physical sensation itself is disturbing to say the 
least. | should look into getting some 
equivalent of a "Try again later" sign. 


- Field notes of Dr. Marino 
Social organization 


Most decisions regarding the maintenance of SCP-3003, the lives of 
its population, and the day-to-day operation of SCP-3003-3 are 
handled by computer programs designed for the task. Human 
interaction is mostly limited to the design and maintenance of these 
programs, as well as the generation of data inputs for them. 
SCP-3003-3's political system is thus dissimilar to any practiced on 
Earth, past or present. SCP-3003-3's "Ruling Committee” is tasked 
primarily with collecting, reading, and analyzing various reports in 
order to identify potential planet-wide initiatives in situations for 
which the aforementioned programs cannot properly account. Their 
findings are broadcast to the populace in general, which complies of 
its own accord. 


Direct interaction between members of SCP-3003-3 typically occurs 
in the context of their occupations, and is used almost exclusively for 
the purposes of coordinating activities or sharing useful information. 
This can be exploited for purposes of containment: as all of their 
human interaction has occurred with other members of SCP-3003-3, 


members will generally be unfamiliar with the concept of deception 
(as it serves no purpose in SCP-3003-3), and are thus unlikely to 
independently verify any information given to them. However, testing 
has shown that subjects are perfectly capable of understanding 
deception once introduced to the idea. 


+ Commentary 


Despite a good deal of observation and much 
probing on my part, we still don't know how 
sexual activity or procreation occurs among 
SCP-3003-3. They refuse to talk about it or 
even allude to it. I've seen nothing that 
resembles pregnancy, which probably means 
that they use in vitro fertilization, but | have no 
idea what they could possibly be so intent on 
hiding from us. 


- Field notes of Dr. Shah 


Members of SCP-3003-3 make terrible 
conversation partners; more than anything, 
this is responsible for the generally declining 
mental state of my research team. The lack of 
emotional and conceptual depth among the 
populace, along with how they overact the 
emotions they DO have, gives the impression 
of talking to overgrown, highly literate children. 


The purely utilitarian value of __ their 
communication makes it uncommon for them 
to pay attention for longer than two 
statements, as they expect to resume their 
work and for you to get the rest of the 
information from someone else. They're 
generally confused by pleasantries: on one 
occasion, after | spent too long attempting to 
make small talk, | was taken in for an 
examination to see if I'd had a stroke. 


Unlike every other society I've encountered or 


read about in my career, any kind of personal 
connection between our society and 
SCP-3003-3 seems impossible. | haven't even 
found a way to efficiently convey the concept 
of friendship to -3, and naturally they have no 
interests in common with us. Sure, they're not 
drones, but that hardly matters when their 
individuality is just different ways of loving 
marce. 


The one | sleep next to draws a marce on their 
bedpost whenever one of theirs dies. A doctor 
down the hall cuts the marce sacs out of left- 
over dead bodies and keeps them. One time | 
met an architect who writes fictionalized 
accounts of individual marce living in the wild. | 
once saw two farmers competing to see who 
could memorize the longest section of marce's 
genetic code. And they've built their whole 
identities around this crap. 


Coming back to this after a good night's sleep, 
the above section is more symptomatic of 
frustration and culture shock than reasoned 
observation, though in broad strokes it remains 
true. It would be easier to stay grounded if | 
could maintain regular contact with Earth. 
Future observations should be limited to two- 
week shifts, and/or visiting Earth humans must 
be stationed in the same city. This situation is 
intolerable.