Einstein theory of relativity pointed out that there is no preferred reference. The mistake that is often made in this type of discussion is everyone is assuming the earth reference, which sees the universe as being15 billions years old, is the absolute reference. According to Einstein this is a relative reference.
The way I approached this problem, years ago, was to reverse engineer the problem. I assumed, for the sake of argument, that the bible is true, and God created the universe in six days. The question now becomes, would have to be God's relative reference, so he sees it the way he says it was in the Genesis; God's relative reference?
That much compression of time and space; 6 days, relative to earth reference; 15 billion years, would require a reference, essentially at the speed of light. This reference would then need to be slowing,very slightly, from essentially the speed of light, to a speed that still is very close to the speed of light. This is inferred from the first day representing the longest time duration, and the last day the shortest time duration, in terms of earth reference.
So what could cause such a reference and what would look like? One possibility would be an equilibrium between energy, matter and anti-matter, where matter and anti matter is condensing from energy but immediately reversing.
The result is not exactly matter-anti-matter or energy, but an average paradoxical state that is at the speed of light, but also slightly below the speed of light, at the same time. The matter and antimatter and energy is appearing-disappear, like a sine wave but of slowing frequency.
This model, is occurring at the smallest states of matter and energy, instead of the bulk macro state, yet is inducing the bulk macro states; alpha generating the omega. This is similar to particle physics assumptions. Earth reference uses the macro omega reference.