A genetically dependent continuant (GDC) is something which depends on a substrate to “exist”.
Latin as a dead language could be thought of as a GDC which survives until today even though as a language it is not used within any culture.
Another example is the Inca culture. It survives not because the culture has survived but because the descendants see evidence of it and remembers because of objects relating to Inca culture have survived and reminded them of its past presence.
Once all people who know of the Inca culture, and once all related objects disappear Inca culture will vanish, that is, seize to exist.
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