The Cosmic Bubble Leakage Hypothesis (CBLH) is a falsifiable observational framework proposed to investigate whether large-scale cosmic anisotropies may originate from an ancient interaction between two cosmological bubbles with different physical properties. The framework does not introduce modified gravity, alternative particle physics, or departures from the standard cosmological model. Instead, it focuses exclusively on observational signatures that can be tested using publicly available cosmological datasets. CBLH proposes that a partial merger and leakage process between two ancestral cosmic bubbles may have generated long-lived anisotropic imprints observable today through preferred directions in cosmic void distributions, large-scale bulk flows, and other large-scale structure tracers. To explore this possibility, a series of zero-assumption, zero-interpretation null tests were performed on publicly available cosmic void catalogues. Analyses included catalogue cleaning, maximal-void selection, robustness audits, bootstrap stability tests, hemispheric consistency tests, and independent replication using the SDSS DR7 VoidFinder maximal void catalogue. Current results indicate the presence of a statistically significant preferred direction in the analyzed Cartesian void catalogues. However, no physical interpretation is assigned at this stage, and independent confirmation using alternative void-finding algorithms, surveys, and isotropic mock catalogues remains essential. CBLH is therefore presented as an observational and falsifiable research program rather than a claim of new physics.
Ali Alhawarat (Sat,) studied this question.