The Big Bang is a hypothesis with considerable supporting observations but it requires too many twists to make it work, dark matter can be handled, but I’ve a problem with “Inflation”. Where did it come from, where did it go, is it still around??? Silly questions but they trouble me. Cyclic universes answer the very good, “What came before?” question.
However, we have learned a lot in pursuit of answers an that’s all to the good.
It only seems to solve the obvious problems if you presume an infinite number of cycles. Then you are left with two ridiculous possibilities. One is that identical cycles sometimes happen in a pattern, and the other is that each cycle varies from the others. In the first case each of us has existed an infinite number of times before. In the second case all possible forms of life have evolved in infinite number of times before and we are all made up of particles that have each existed in an infinite number of pink unicorns from the infinite number of relatively rare previous cycles that had them.
But those of us who can think mathematically about limits realize it doesn't solve the problem anyway.
Materialism is simply disproved.
When God Created 'it all', He created time and space, or spacetime if you will, in which the command 'Light Be' took hold. Inflation happened for an incredibly short time/span of existence, and the result of that expansion of space and time caused 'Light Be' to occur. ALL dimensions and all possible variable expressions of those dimensions came into being in the initial conditions of Creation.
Without that 'blink' of inflation, no light could be. And to show that is correct, if the creation and destruction of 'virtual particles' gave off light, we would be seeing a sparkle all the time and not be able to differentiate our Universe of vast electromagnetic reality. So at the Planck length and Planck time scale no light comes forth. The process of Creation of spacetime is all around us still happening. But the initial conditions, inflation, only happened 'In The Beginning'.
Yes it is still around. We can see light and structure associated with it, plus, not only is the Universe still expanding, but it's at an ever faster rate.