The KBC Theory – Part 5: Accelerated Expansion Induced by Inter-Universal Resonance

This paper reinterprets the current phenomenon of accelerated cosmic expansion through the lens of the KBC (Kim–Bigbang–Cosmos) Theory. While traditional cosmology attributes this acceleration to dark energy, its nature remains unverified. This study proposes an alternative hypothesis: that cosmic acceleration is not driven by residual energy within our universe, but rather by resonance and wave interference between neighboring universes. Specifically, adjacent universes may exert influence on the outer boundaries of our own universe through energetic resonance or wave inflow, producing a "resonant pressure" that causes accelerated expansion. This paper presents the structure of this hypothesis and discusses its observational implications.