Abstract

Contemporary theoretical physics suggests that spacetime and gravity might emerge from deeper informational structures, hinting that our universe could be holographically organized. In this speculative essay, we explore the idea that reality itself has a fundamentally holographic character, using black hole physics and quantum information as guiding clues. Black hole thermodynamics reveals a mysterious link between information and the geometry of space, inspiring the holographic principle that a region’s content may be encoded on its boundary. We survey how this principle—and the notion of an informational universe—intersects with philosophical interpretations of time: from the eternalist block universe view of an unchanging 4D spacetime, to informational realism which posits information as the substrate of existence. Against this backdrop, we introduce Existential Realism (ER), a two-tier ontology distinguishing transient existence from enduring reality. We argue that ER’s framework provides a novel lens for these questions. In ER, the present “now” is like a projection of an underlying informational reality; black holes then appear as ontological cracks where that projection falters, raising profound questions about time, causality, and hidden order. We show how ER’s emphasis on an evolving present and an informationally rich reality can reframe puzzles such as the black hole information paradox and the nature of temporal entropy. This work is intended as a frontier-level exploration: it sketches a consonance between cutting-edge cosmology and a new metaphysical model of time, suggesting that what we call “reality” might indeed be a projection from a deeper order of information and existence.