Hierarchical Single-Cell Cosmology: A Quantitative Framework for Fractal Self-Similarity Across Seven Scales of Organization

e propose a hierarchical single-cell cosmology (HSCC) in which the same cellular archetype—membrane, nucleus, circulation, and engulfing pseudopod—recurs across seven orders of organization from the unicellular scale (10^-5 m) to the observable universe (10^26 m). Rather than asserting that the universe is literally a cell, we quantitatively test the weaker, falsifiable hypothesis that systems at these scales share morphological self-similarity. Using real observational data from the ESA/Hubble archive and the Sloan Digital Sky Survey, we extract 24 tidal-tail contours from eight galaxy mergers and compare them with 25 pseudopod contours generated from canonical cell-phagocytosis parameters. The fractal dimensions are D_f = 1.212 ± 0.060 (pseudopod) and D_f = 1.073 ± 0.156 (tidal tail), a small but statistically significant difference (ΔD_f = 0.139, t = 4.667, p < 0.0001). Additional shape descriptors—curvature distribution, aspect ratio, circularity, and tortuosity—also show significant overlap, with network clustering coefficients C = 0.68–0.75 and an energy-size scaling law E ∝ M^1.92 (R^2 = 0.991). We offer five falsifiable predictions and discuss how the framework bridges reductionist science and holistic philosophy. The findings are consistent with fractal universality, but do not prove that the universe is a single cell.