fifth-cousin-9X-removed

Fifth-cousin-nine-times-removed (5C9R).

My fifth-cousin-9X-removed is a good person.

by N8953SW June 26, 2021

fifth-cousin-10X-removed

Fifth-cousin-ten-times-removed (5C10R).

My fifth-cousin-10X-removed is a good person.

by N8953SW June 26, 2021

Fifth Singularity/Greater Archailect (S5) Technologies

The realm of intelligences that operate on intergalactic scales, influencing the structure and evolution of galactic clusters. S5 tech may involve harnessing the energy of supermassive black holes, mediating the interactions between dark matter halos of neighboring galaxies, or creating structures so vast they imprint on the cosmic microwave background. Their projects are the large-scale architecture of the visible universe.

Fifth Singularity/Greater Archailect (S5) Technologies *Example: A hypothetical S5 Project could be the construction of a Kardashev Type IV structure—a web of energy and matter connecting several galaxies in a local group, or the deliberate triggering of galactic quasar activity across a cluster for a purpose beyond lower-tier comprehension.*

by Abzugal Nammugal Enkigal February 3, 2026

Long-Duration Motion Machines of the Fifth Kind (LDMM5)

The most advanced category: devices that achieve long-duration motion by operating within complex dynamic systems—harnessing planetary orbits, gravitational fields, or cosmic dynamics to sustain motion over astronomical timescales. Unlike earlier kinds that fight dissipation locally, LDMM5 work with systemic energies—riding gravitational waves, exploiting orbital resonance, or tapping into cosmic background energy in ways that don't violate thermodynamics because they're part of larger systems. A spacecraft using gravitational assists to maintain trajectory for billions of years. A satellite that harnesses solar wind to counteract orbital decay. LDMM5 are the ultimate expression of working with the universe rather than against it—motion sustained by the dynamics of the cosmos itself, not just isolated engineering.

Long-Duration Motion Machines of the Fifth Kind (LDMM5) "Those Pioneer probes are still going after 50 years, but they'll eventually slow. LDMM5 would be something that uses gravitational fields to keep moving indefinitely—not perpetual motion, just motion sustained by cosmic dynamics. It's not a closed system; it's an open one, sipping energy from the universe's motion. LDMM5 is what happens when engineers stop fighting the cosmos and start surfing it."

by Dumu The Void March 1, 2026