The correct interpretation of how distance decay influences culture is:
When a culture is farther away from its hearth, it will begin creating new elements of culture.
Distance decay suggests that as distance increases from a cultural hearth, the influence of that culture diminishes. This often leads to the development of new cultural traits or adaptations because the original cultural practices may change or evolve as people interact with different environments and communities. Thus, cultures can diverge from their origins and create unique aspects over time.