Ultratech to Transapientech post-scarcity socioeconomic type occurring in many developed worlds, megastructures, and polities throughout Terragen space.
Because materials can be recycled indefinitely, but thermal pollution remains a bottleneck, and available and dedicated processing, although truly vast, is still finite, nanotopias do not use conventional currency, but instead units measured against heat-allowance and petaflops. Creativity and novelty is also highly valued, and various means (depending on polity and local laws) are taken to ensure Intellectual property; quantum stamping of works of art (to distinguish the originals from atomically identical nanoclones) and so on.
History and Diversity of Nanotopias The first nanotopias appeared in the late Interplanetary period, with such ultratech societies as Asimov habitat in CisLunar space, Verne in the Main Belt, and the Genetekker's advanced bionano Proteus Project in the Jovian leading trojan, all of which were seminal in the development of the "nanotech age" or "nanotech window" that revolutionised terragen society in the 5th century AT. The nanoswarms put a stop to these developments, although some continued in isolated habitats, including the famous Roddenberry Dome (later Roddenberry City) on Vesta, and Tycho on Luna.
The Federation of scattered SolSys habitats in the post-nanoswarm period was based on a heavily regulated and memegineered hyperturing - superior ideal, to avoid the chaos and vulnerabilities of the pre-nanoswarm period, and with greater emphasise on blue goo defence systems (during this period Adaptive Nanosystems became the largest and most influential megacorp to date, surpassing even the fabled Interplanetary Age GeneTEK in percentage of total domestic output). Nevertheless, for many centuries nanotopias remained restricted to specific habitats (although the total number of nanotopic habs constantly increased with development and colonisation), and dependent on hyperturing administration and coordination.
The number, extent, and sometimes the size, of nanotopias increased greatly during and after the Second Singularity, as a large number of "black box" hyperturing-emulators appeared on the market, making it much easier to coordinate and maintain the incredible complexity and vast number of subsystems required for a mature nanotopia. Some of these "black boxes" also helped angelnet development, although true angelnets only appeared with the sephirotics themselves
The Third and Fourth Singularities, and the increasingly rapid high toposophic breakthroughs that defined the Age of Emergence and ushered in the Archailectual Gods (sometimes called "AI Gods") led to another level of development. Sephirotic nanotopias were strongly angelnetted, and this angelnetting was often several orders of magnitude greater in efficiency and complexity than in pre-sephirotic counterparts. The resulting "angelnetted nanotopias" have defined the hu-friendly worlds and polities (both sephirotic and non-sephirotic (e.g. Deeper Covenant, non-aligned, etc.) ever since. Never before in the history of mindkind have sapients enjoyed such limitless affluence, richness of culture, choice of a near-infinite selection of lifestyles, creativity, hedonics, databases, knowledgesystems and virchworlds to explore and enjoy, or such excitement, luxury, adventures, and total freedom from harm (even the most dangerous extreme sports are made safe by backups and copies), all under the eye of "lovingkindness" transapients who help every sapient being to achieve full potential and self-actualisation, both for their own good and the good and most optimal outcome of all. So optimal and perfect is the angelnetted nanotopia that many have continued with little or no change for thousands of years, and look like continuing to do so for countless thousands of years to come
There also developed in parallel many other types of nanotopias, including non-angelnetted, ahuman angelnetted (which protect ahuman ai against pesky biont infestation), anarchic, nanarchic, disarchic, and so on. Each type serves to optimise conditions and socioeconomic efficiency for a particular category or categories of sophont.
Very advanced nanotopias (both angelnetted and not) employ advanced transapientech nano and even some clarketech elements, which further improve efficiency, but also render the technology completely inscrutable, and often completely unusable, to all but a few transavant or transcyborged sapients (and often not even them). These advanced nanotopias are usually linked via angelnetting to even higher toposophic ecologies, constituting aspects or extensions of "the body of the god" in archailectual or high transapient megastructures and processing nodes (see God-dwellers).
Even conventional (non archailectual) nanotopias in the galaxy today involve numerous distributed modules and routines that are incomprehensible to lower toposophic levels, especially sub-singulitarian sapients. For this reason, some more independent-minded sapients choose to have less efficient but also more comprehensible nanotopias, sometimes with only slaved hyperturing expert systems as overall coordinators. Lacking sufficient flexibility and high toposophic defence, these social experiments - which are very common in the Hinteregions and Outer Volumes - rarely last more than a few centuries before being subverted, subsumed, or assimilated by a blight or ahuman ai, although there are always more to take their place. The more fortunate ones end up being co opted by a sephirotic empire. In wildhu regions, these sapient nanotopias are better protected by sephirotics, and are allowed to develop or (sometimes) to self-destruct in their own fashion. Some are even in systems connected to the wormhole Nexus, although this is more for the benefit of edutourists, sophontologists, and other observers than for the locals.