If structure is strictly defined as a single, continuous object without significant empty space, what would be the largest candidates?

Answer

Supermassive black holes (event horizons)

The text notes that if structure excludes gravitationally arranged collections with empty space (like walls and filaments), the largest objects become density-bound ones, such as the event horizons of supermassive black holes.

If structure is strictly defined as a single, continuous object without significant empty space, what would be the largest candidates?

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