How is the concept of the Habitable Zone refined into a three-dimensional model called the 'Habitability Bubble'?

Answer

By incorporating orbital distance, atmospheric density/composition, and internal state.

The three axes defining this conceptual bubble are orbital distance (primary axis), atmospheric density/composition (thermal retention), and internal state (longevity of the first two factors).

How is the concept of the Habitable Zone refined into a three-dimensional model called the 'Habitability Bubble'?
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