Fuzzballs (Geometric Replacement)
Singularity Alternatives
Frontier, 2005 / 2022
The three rings
- Inner ring
- The other variants of Singularity Alternatives. A hollow square is historical or rejected.
- Middle ring
- The other families of Ch. 6, as their status shapes.
- Outer ring
- The other chapters. Those at the top are marked “Also answers this question”: this variant answers their question too.