The Hollow Glass Sphere. An Extension of the Science Readiness Scale (S.R.S.)

This paper extends the framework of the Scientific Readiness Scale (S.R.S.) (Rizk, 2025) by introducing the Fragility Index (FI) and the Model Dependency Index (MDI). These dimensions adjust the final S.R.S. score to account for structural vulnerabilities that are often masked by high confirmatory evidence. The conceptual basis is the “Hollow Glass Sphere” metaphor. A structure that achieves perfect stress isotropy and apparent maximum maturity, but remains extremely fragile and collapses at a single microcrack. The FI quantifies exposure to radical revision through Gap Density (GD), Alternative Viability (AV), and Hypothesis Depth (AD). The MDI captures latent circularity by measuring the percentage of confirmatory evidence produced by models that assume the basic axioms of the theory. A Collapse Depth (CD) measure is also introduced. The revised Gap Density (GD) and FI formulations incorporate the MDI as a gap amplification factor. Three illustrative case studies illustrate the framework, followed by a Risk-Maturity Matrix. This methodological proposal aims to distinguish between epistemological maturity and genuine structural resilience.