This paper proposes, from the perspective of Topological Cosmology, that ouruniverse may not be the absolute original Big Bang universe, but a derived universe separated from a preceding “Mother Universe” through local topologicalseparation. The motivation is the discovery of high-redshift galaxies in the veryearly universe by the James Webb Space Telescope (JWST). JADES-GS-z14-0 hasbeen spectroscopically confirmed near z = 14.32, corresponding to roughly 290300 million years after the Big Bang. ALMA observations also reported oxygen inJADES-GS-z14-0, suggestingthatthis galaxymayhavebeenchemicallymoremature than expected at an age of less than 300 million years. This paper does notinterpret such observations merely as evidence that galaxies formed faster thanexpected. Instead, it interprets them as a possible indication that our universeinherited spatial phase stability and matter-condensation directionality from aMother Universe during a local topological separation event. In this framework,the 300-million-year galaxy problem is not only a problem of early galaxy formation, but also a question about the genealogy of our universe and the meaning of the Big Bang. Original Proposal Notice This hypothesis and interpretive framework were first proposed, structured, and authored by JB Lee as part of the Topological Cosmology framework. Researchers who cite, extend, formalize, simulate, mathematically develop, or reinterpret this hypothesis are requested to acknowledge JB Lee as the original proposer of the concepts presented herein, including the derived-universe hypothesis, the Mother Universe separation model, inherited spatial phase stability, and the topological interpretation of early galaxy formation within the first 300 million years of the universe.