This work proposes a concept of the finiteness of the Universe, grounded in the assumption that the physical structure of space is determined by fundamental interactions. It is argued that the boundaries of the Universe coincide with domains of quantum vacuum, which do not possess spatial or temporal characteristics. Within this framework, infinity is treated as a mathematical abstraction without physical realization. Furthermore, the study discusses the connection between quantum fluctuations, fundamental interactions, and the emergence of the space-time continuum.