A not in expansion, but free-fall model of universe

A cyclic model of the universe, termed the BB-BC Bipolar Model, is presented, wherein the Big Bang (BB) was generated in a four-dimensional curved hyperspherical space whose surface is our three-dimensional geometric universe. Given this positive geometry, matter evolves by accumulating at another point in this space, forming a developing Big Crunch (BC). This framework implies that, from Earth, the entire visible mass of the universe is perceived not as expanding but as falling toward a gravitational center of attraction (the aforementioned BC). In this work, the predictable results of the model according to Newtonian mechanics were compared with acceleration data obtained from supernova redshift observations from the Supernova Cosmology Project. Among the main findings, it is concluded that the existence of dark energy is not required to explain the acceleration of the universe expansion, while leaving open the possibility that residual masses from the previous cycle contribute to matter condensation of the next cycle.