Seek out the 'good' virus-bacteria twins. When these exist, the lives of the corresponding 'twin' worlds—or the 'twin' forms of any given species—are significantly extended.
The realm of Quantum Field Theory appears engaged in the creation of a "dwarf-magnetic twin" entity. Aimed at fortifying the foundations of modern civilization—much like the discovery of bronze once transformed human society—this theory has occupied the minds of humanitys greatest thinkers, from Planck onwards.
We have learned about the 'Skeletal Planet' Neptune. Its positioning implies a separation— a river being divided from the land (or 'village' area) by a stretch of sand.
If human settlements on a 'twin Earth' are situated on flat plains—removed from mountains, forests, coastlines, riverbanks, icy regions, or deserts—and, crucially, do not come into contact with mineral deposits, then they are considered to be located on 'Earth.'
If all entities exist as "twin Earths"—where each individual functions as their own sun and pole star—then, given that our bodies are 60% water, we can potentially inhabit a "twin moon" reality.