The Big Bang is a singularity. The universe is a dynamic continuum that can be described by field equations that are described by a quaternionic function, which uses a quaternionic number system as its parameter space. At the beginning of time, this function equals its parameter space. That parameter space is a flat stationary field. During runtime, his flat field can react on actuators that deform and expand the field or that vibrate the field. If this happens distributed over the full extent of the field, then the universe does not start with a huge explosion. Instead, it starts with a quiet development in which first the most elementary objects are generated and later conglomerates of these elementary modules are formed.
See https://vixra.org/author/j_a_j_van_leunen