David Brin Fan Sites

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Below are some fan sites, not necessarily cited with permission. Often creator names are missing or are just handles.  Some encyclopedia style entries may have borrowed without citation.

The Alliance for Progress Encyclopedia is the largest David Brin fan site so far.  In its early phases the A4P Encyclopedia borrowed heavily from Stewart Blandón’s site.


The Alliance for Progress Encyclopedia

A sizable encyclopedia, mostly of sapients.

Stewart Blandón’s fan site


An article about the G’kek, with links to other Brin things.


This could have been great.




Kazuo Sumiya (origami Uplift figures!)


Bibliographies, Biographies, Critiques, and Reviews

Guida a David Brin (in Italian!)

Otherness Meme by Alex Schroeder

The Templeton Gate

A review, with science fiction idea highlights.

A visual Brin bibliography


Mailing Lists and Communities

The brin-l mail list was a vibrant community once upon a time. Sometimes its participants even communicated about things related to the thought and works of David Brin.

Sites of Fans

Alberto Monteiro’s Home Page

The Scroll of the Web

Sloan3D: Steve Sloan’s Pages

Orders of Sapient Galactic Life: A Terragen Reliability Survey White Paper

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Key Words: Terragen Reliability Survey (Tg.R.S.), life, Galactic life, Orders of Galactic Life, sapience, sentience, sophonce, Organic, Hydrogen Breather, Oxygen Breather, Terrestrial life, Jovian life, Built life, Artificial life, Hypothetical life, pariah species, Galactic dissidents, dissident species, refugee, refugium, Quantum life, Memitic life.

Also Terragen relations with: Built species, Machines, Mimites, pariah species, refugees, Galactic dissidents.

Orders of sapient life

First, it is useful to recall that Galactic knowledge divides sapient life into several super-groups. The first division is between main-sequence and advanced sapience. Advanced-orders-of-sapience include Retired and Transcendent life-forms. For now, suffice it to say that organic-artificial distinctions are not important in classifying advanced sapient forms. Main Sequence sapient life-forms can be broadly divided into Organic, Built (or Artificial or Mechanical) groups, as well as Quantum sapience. It is held—at least among H-2 and O-2 species (all of which are Organic)—Organic life-forms have a higher right to existence than Built forms. It is also well known that many ethicists—not least Terragen and Tymbrimi Clan philosophers—consider the Organic-Built distinction to be not only invidious, but also absurd. The authors largely share this view, but this is not the place to dwell on it. We will, however, propose that there exists a fourth category of main-sequence sapient life that we call “Hybrid.”

There are also three concepts that cut across this classification scheme. The first concept-continuum is “Empirical” (or not-hypothetical) as opposed to “Hypothetical.” Simply put, empirical life-forms are attested to in the documentary record. Examples either exist, or have existed in the past. Hypothetical life-forms could—in theory—exist, but have never actually been documented. The most famous example of hypothetical life-forms are a Plasma Order. Demonstrating the existence of plasma life would be very difficult, at best. One would probably need to descend into the corona of stars, since the corona itself would drown out any trace signal from Plasma Beings. Unfortunately, wise Galactics are certain that entering a stellar corona is impossible; the Library knows of no apparatus having ever been built to perform such a voyage, or for any similar set of engineering stressors.

The other cross-cutting criteria are the concepts of sentience and sapience. These are not mutually exclusive. Speaking plainly, sapience is the ability to solve problems: cold intelligence. On the other hand, sentience is the ability to feel or perceive, or (more deeply put) awareness. First, we discuss the problem of sentience.

Rocks are sentient…at least according to the Jain religion rocks are sentient. They react to stimulus. For instance, if you hit a rock hard enough, it breaks. Thus the Jains reasoned, each rock must have its own distinct “rock spirit” that causes it to perceive hammers and react appropriately when struck. A plant is much more sentient than a rock, an ant much more perceiving than a plant, and a cow or a Human is very aware indeed. According to Jainism everything is sentient. Even neutrinos must be sentient–but just barely, because it seems there are very few things that a neutrino can perceive. This is only a schematic presentation, Jainism is probably the most systematic animist formulation ever developed. The Jain theory of sentience actually hangs together rather well when examined at greater length that we can devote to it here.

Consider the common lap dog. It may be much less intelligent than a human, but it is almost as sentient. It sees, feels pain, hunger, plays, and even has emotions. Furthermore, there is some evidence that dogs have a sense of self, albeit pre-symbolic, and even some quite sophisticated apparatus for perceiving other highly developed sapients—be they Humans, cats, or other dogs—and reacting accordingly. They can even perceive emotional states in others. The Jains would say that it is the nature of a lap-dog’s animating spirit to be aware of the desires of others, and to perceive pleasing certain other sentients (such as members of the family that owns it) as pleasurable. Note, however, that a highly sentient creature need not be highly “altruistic” or gregarious. House cats and Terragen_sociopaths are as sentient as dogs, or more so. However, a house cat certainly does not care very much whether others are pleased or not, though cats do seem to perceive the emotional states of others. Sociopaths also perceive the emotional states and needs of others, and ruthlessly exploit them.

Beyond this high level of sentience lies what is called haut-sentience. This is the ability to imagine, to speculate for pleasure, to wonder, to appreciate, and above all, to know the self as a knower. The ideal Galactic citizen has highly developed haut-sentience.

Note that sapience is not necessarily closely associated with high levels of sentience. Some cephalopods are fairly good problem solvers—as good as, or better than, some birds. However, they are not as sentient. Among Galactics this independence between sapience and sentience is perhaps most evident among the Tandu ab-Nght6. Without a doubt Tandu are impressive problem solvers. Also, Tandu are aware of the self, and are even aware that they are aware of the self. However, they have a limited capacity to see others as other selves, and have hardly any capacity for wonder, appreciation, or for non-utilitarian speculation. Nor is haut-sentience essential for sapient survival. Pre-contact A.I researchers developed Mimetic (or virtual) life-forms with impressive problem solving abilities that would do quite well in their complex—and competitive—virtual ecologies. They were rather sapient. However, while the researcher might think (and know that he thought) “I am talking to a virtual sapient,” every indication was that the virtual sapient thought something like “Action: communicate from/to_and_to/from entity_capable_of_complex_symbolic_communication,” and knew not of its own thought. Where we think “I am hungry,” and have the consciousness to be conscious of this, the non-sentient thinks “PRIORITY: obtain sustenance,” feels no hunger pains per se, and is not conscious that it is hungry. In short, the non-sentient sapient is clever, but not conscious.

It is worth noting that it seems much more difficult to make a built life-form sentient than to make it highly sapient. It is thus likely that at least the early Galactic Machine life-forms—like pre-contact Terran machines—were sapient but not sentient. They would have been socially autistic, and thus probably made rather poor Galactic neighbors. There are intra-textual indications in the Galactic Traditions that this was one of the main reasons for privileging Organic over Built life. If so, this reason has long been obsolete, because it is evident that Machine life is now quite capable of building haut-sentience into a client “race” (or design series).

When an entity has high levels of both sapience (intelligence) and sentience (awareness), it is most properly referred to as a “sophont.” To avoid having to call the property itself “sophistication,” or worse, “sophistry,” we use the term “sophonce.”

Organic life-forms, in turn, fall into two divisions, Terrestrial and Jovian, usually referred to as “Oxygen-breathers” and “Hydrogen-breathers.” Hydrogen breathers are by far the more numerous order due to the much higher frequency of suitable biospheres. However, the advantage of many more biospheres is off-set to a degree by the immense size of any H-2 individual relative to even the largest of O-2 sapients, and the much slower bio-rhythm’s of most H-2 life-forms. Indeed, while O-2 civilization tends to regard H-2 civilization as a potential threat because of its immense demographic and economic advantage, H-2 species tend to regard O-2 civilization as a potential threat because of the much faster rhythm of O-2 life. H-2 anxiety about O-2 speed is only compounded by the fact that H-2 sapients seldom use more rapid means of interstellar travel—such as A-level hyper-space, jump-line travel, F.T.L. telekinesis, or probability drive. Instead, most H-2 species putter around the galaxies in D-level hyperspace or in normal space at near-light-speed. (See interstellar travel, Hyperspace, light speed.)

Nor are the mutual security concerns misplaced. Disastrous wars have been fought between H-2 and O-2 civilization in the distant past (See O-2/H-2 Wars), despite the fact that H-2 and O-2 species do not directly compete for most resources. The major reason for the existence of the Galactic Institute for Migration is to limit contact—and hence conflict—between the two great orders of Organic life. Though after billions of years of research, communication between O-2 and H-2 species remains quite difficult, the two orders do engage in trade (See O-2/H-2 communication and O-2/H-2 trade). Many (but by no means all) trade practices resemble “silent trade” procedures used on Earth in the past.

H-2 life-forms are classified by habitat: namely Browns (Hydrogen breathers who live in brown dwarfs), Jovians, and Neptunians. Curiously, while higher environmental temperatures are positively correlated with faster rhythms among O-2 species, the reverse is the case among H-2 life-forms. Though chemical processes do occur at faster rates, Hydrogen breathers who evolve in hot environments are larger (and lighter) than their colder cousins. Hence, Browns are the largest and slowest of the H-2 breathers. The occurrence of Browns is limited by the occurrence of brown dwarfs. Jovians are also quite large and slow (though less so than Browns), and are much more common than the other two kinds of Hydrogen breathers. Neptunians are the rarest of the Hydrogen breathers due to the low frequency of neptunian planets with complex ecologies. However, Neptunians are active Neptuniformers, and are enjoying a secular increase in population. Though still immense and slow by O-2 standards, Neptunians are the smallest of the Hydrogen breathers and much faster than their cousins.

Terrestrial organic life is much less common than Jovian life. This is largely because terrestrial life is limited by the geological presence of liquid solvents. In practice, this solvent is almost always water. The vast majority terrestrial sapient life releases energy from hydrocarbons through chemical reaction with oxygen (hence the common practice of referring to the entire group as O-2 life). However, at any given time “O-2 civilization” contains a few species with anaerobic metabolisms (usually based on hydrogen sulfide) as well as a tiny number of Halogen Breathing species. Anaerobic_life is, of course, rather common. However, multi-cellular anaerobic species with uplift potential are very rare. Halogen (Fluorine, Chlorine, and Iodine) based biospheres are simply incredibly rare. Those known to exist are very carefully managed by the Galactic Institute for Migration. Such Anaerobic and Halogen species as exist usually participate actively in wider O-2 civilization.

One other kind of Terrestrial life was once common throughout the Galaxies. These were Methane and/or Ammonia life-forms that lived in Titan-like habitats. Though complex Methane-Ammonia ecologies are rare, they do occur, and historical sources clearly indicate that Titan-forming was relatively easy and economical. At the time of contact, Terran scientists were surprised to learn that no methane or ammonia life existed in the five galaxies. It took some time to discover that Methane-Ammonia intelligence was simply extinct. H-2 civilization considered the Methane-Ammonia sub-civilization a partial competitor and immediate security threat to both existing H-2 species and to fallow H-2 ecologies. Some of the wars between H-2 and Terrestrial civilizations were genocidal in intent. In one of these H-2 civilization was partly successful. They exterminated most Methane-Ammonia species, and the peace treaty ended further Methane-Ammonia uplift.

Prior to the great O-2/H-2 wars all Organic life was thrown into a struggle for survival against self-reproducing artificial intelligence. Though initially quite successful, Built civilization was eventually very nearly driven to extinction by the combined forces of Organic life. The terms of the peace for Built sapience were harsh, and limited Built life—not only to stellar systems hostile to Organic life—but to “sterile” stellar systems in certain specified regions regarded as largely unproductive and non-strategic. By this time both Organic civilizations had also drawn up elaborate codes restricting commerce between Organic and Built species. O-2 (and H-2) civilization remains very phobic about Built life to this very day, and most of the traditions restricting contact with Built species are still respected and enforced.

Most species of Built sapients are “sapient machines.” Except for those explicitly licensed by the galactic institutes—none of which can reproduce themselves—all Machine species (or design clusters) live in the above mentioned reserve areas. Though it has been many aeons since the last Organic-Machine war, most Machine (and software) clans still avoid contact with the Organic civilizations. A few clans and species—such as the Seven Spins Clan—do have guarded relations with Organic civilization. However, trust seldom runs very deep.

Somewhat distinct from true “Machine” sapience is “Software” (or “Virtual”) sapience. Software sapience is not specifically hardware dependent—it is, in fact, a computer program. Of course, the program requires a suitable hardware substrate, and manifestations of a given Software form may vary somewhat depending on the supporting hardware platform. However, strictly speaking, the hardware contains no inherent potential for sapience. After manufacture the machine will not learn on its own. Only after certain Software program(s) are loaded will any sapient qualities become manifest. Indeed, if the sapient program is completely deleted and scrubbed, the hardware should support another member of the Software species equally well. As a rule, Software species can survive de-powering of hardware substrates if properly stored, and they can clone (copy) themselves or migrate from one platform to another. Also, provided a sufficiently sophisticated substrate is available, more than one (distinct) software sapience can “live” in one hardware substrate.

If anything, Software sapience is even more strictly controlled than Machine sapience. All Software sapients in O-2 space must be highly dependant on specialized hardware substrates and incapable of self-replication. Records for historical Software races and those few Software sapients still participating in Galactic civilization show a distinct tendency for succeeding client races in sapient lines to become
increasingly Machine-like1.

In contrast to Software races, true Machine species function much more like Organic sapients. Having been born or built, the young Organic or Machine sapient automatically begins to learn. As a rule, Machine sapients—like Organic sapients—cannot be neatly divided into an “intelligent self” that is separable from a substrate. Damaging the intellect, personality, or memory of a sapient Machine often requires physically damaging the Machine. Also, damage to the cognitive resources of a Machine intelligence often result in a cascade failure of the entire entity—including non-processing parts of its machine body. Storing a Machine personality is only somewhat less difficult than artificially storing Organic personalities. In addition, a Machine’s personality is always very sensitive to initial hardware conditions. Even when sophisticated techniques are used to “copy” a personality into an “identical body,” results are never exact—though usually more so than in analogous procedures performed on Organics.

Memitic life shares traits with Software life. Memites live in the minds of sapient individuals (indeed without memites, it is hard to be sapient). Memites rely on trans-individual communication and existence. Memites live autonomously in E-space.

Quantum life emerges and lives in the quantum foam. Quants trade with Newtonian races.

1. Note that software intelligences need not be sessile. If software lives in a “robot,” then for most practical purposes the living software is the robot.

//Computer// “A restricted file is attached. Please initiate a security clearance routine to interact with the attached document. This is a Blue document.

Follow appropriate precautions.In point of fact, the Tymbrimi secret client race (and the god-clients of Humanity) known as the “Niss,” are a Mimetic sophont species. At present they are restricted to a substrate called a Niss computer. The ensemble is known as a “Niss Machine.”

Trent Shipley.
Created: Late 1990’s

David Brin reserves all rights to his creative elements of his universes. This page is not for the profit of Trent Shipley nor his employer nor contracting agent. It shall not impede David Brin’s ability to use and extend his stories.

Please send any comments to: editor@davidbrinfans.org

Rothen ul-Human

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Rothen [entry 1] – Humanoid.

The criminal humans that landed on Jijo believe the Rothen to be Humans long lost Patrons.

“Rothen ul- Human” (?) [entry 2]

No Official Entry

There is no official race named “Rothen.” However, a group of Humans does believe that this mysterious race is their lost Patron. These rumors are unsubstantiated, and there are a number of cults like this, with reclusive races capitalizing on Wolfling superstition by claiming to be Humanity’s Patrons. These “Rothen” are supposed to resemble tall and elegant Humans with fair hair. Some Humans (undoubtedly mad) claimed to have escaped from a place called “Poria Outpost” where Humans are kept as servants by “Rothen” who the people claimed to be “lizards in disguise.”

[Terragens are reminded that by far the bulk of evidence points toward the total—or the very nearly total—natural and spontaneous development of intelligence and civilization in Homo sapiens sapiens. It remains the position of the Terragen Council that if Humanity should have an Uplift Patron (and we almost certainly do not), and if this species is not extinct, then they had best have an EXCEEDINGLY good reason for their behavior, otherwise Terragen Forces will be LEADING the Tandu in the offensive on our so-called patrons’ homes, factories, and military installations.

Out of love for our way of life and their fellow Terragens, the Terragen council urges every decent citizen to immediately report ANY contact by sapients claiming to be from, or to represent, H. sapiens’ long lost “Patrons.”

(“Rothen,” The Alliance for Progress Encyclopedia, Project Diderot edition.)

The Problem

The question we ask begins with just the kind of appeal to Dannikinite desire—a desire to belong, MEAN something and have an explicit, definite purpose in the very act of our creation as a sophont species—that is to say, made by the likes of the “Rothen.” Humans, unlike our valued allies the Tymbrimi, the Kanten, and the Synthians, and their client species, are not just Wolflings—even Romulus and Remus had a wolf mother and a wolf family to belong to. According to the Library, Humans are something unknown in all Galactic history. We are Orphan Wolflings, foundlings, with no connections at all. We are hardly some bastard race, with parents and lineage to curse, we are much less fortunate than that—and this in a Galactic social system where pedigree is everything. As for Neo-Chimps and Neo-Dolphins, they are only marginally better off—children of a polluted foundling, and godchildren of that foundling’s most disreputable friend.

So—being the neglected, abused, abandoned, illegitimate client of a miserable, felonious, out-law species would be a tremendous step up in Galactic society for Humanity.

But what of the Rothen? What of the literally hundreds of other claims to be the Patron race of Homo sapiens? None, NOT ONE, of these claimants can be traced back to a living sapient species known to the mighty Galactic Library. By Galactic cannons, one should conclude not only that none of the claims are valid, but that none of the claimants even exist.

Yet obviously, the claims are being made. True, the vast majority of them can actually be traced back to Human beings. Some of these are propagated by frauds hoping to earn a quick buck from the credulous; a few—often the ones with staying power—by inspired madmen and/or poets with a sincere vision for the condition of sophont mammals. Some are multi-stranded religious movements. A handful of these claims seem to lead back to existing alien species or clans, pursuing their own ends. Others—like the tale of “Rothen Patrons”—have no discernible Terragen or non-Terragen origin. The trail simply vanishes. But the claim, the belief, and the stories definitely exist.

Most curious.

Another curiosity. Despite the astounding recent (as opposed to ancient) discovery of Earth, O-2 and H-2 friendly planets are very well charted indeed. Even remotely plausible Terraforming and Joviforming candidates are well catalogued—and redundantly catalogued—by the Institutes.

Yet for billions of years O-2 civilization has known how to build viable arcologies in the most hostile environments. Before contact, even Earth technology had independently replicated the accomplishment on Venus, of all places. This doesn’t even begin to account for H-2 civilization, “methane” life-forms (now extinct), and surviving machine and mimetic populations, as well as the possibility that the Five Galaxies still contain some macro-nanitic sapients (also exterminated long ago). Primitive life will live in the most hellish environments imaginable, and the little creatures eventually come to find these niches the happiest of homes. Evidently, life complex enough to support sapience is much more fastidious, and prefers extinction to discomfort, or worse—an unfashionable Galactic address.

Nobody regularly checks all those baked rocks, ice-balls, and brown dwarfs—because of course nobody would live there. But Terragens like to be thorough. The Terragen Reliability Survey brought you the Streaker fiasco. Now for our encore, the Tg.R.S. intends to begin a demographic survey of uninhabited space.

Trent Shipley.
Created: Late 1990’s

David Brin reserves all rights to his creative elements of his universes. This page is not for the profit of Trent Shipley nor his employer nor contracting agent. It shall not impede David Brin’s ability to use and extend his stories.

Please send any comments to: editor@davidbrinfans.org

The Works of David Brin

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  1. At the Smithsonian – “Will we diversify into many types of humanity?”, Follow the slides on Slideshare!
  2. David Brin’s TEDxUCSD talk on the addictive plague of sanctimony and “getting mad as hell”, Follow the slides on Slideshare!
  3. More sober reflections on the TV show “Closer to Truth” – on topics ranging from SETI to religion to ESP to human destiny in the cosmos. Monologues on YouTube.
  4. See David Brin discuss entanglement, multiverses and Free Will with two other astrophysicists -Brian Keating and Andrew Friedman—at UCSD’s Arthur Clarke Center.
  5. TEDxBrussels – David Brin – Target 2061: Reinventing Civilization Across Half a Century
  6. Shall we LIFT the Earth? Save our world by shifting its orbit?