Thief-rogue theologian. I believe you have some insight on the Big Bang. Many terms which science uses to explain that event are very confusing. For instance the term Singularity can be confusing. Expansion as a term can be confusing also. Singularity is a point of infinite density like in a black hole. However now scientists want to use this same term for the moment of the Big Bang which is confusing. Expansion is confusing in the sense that when scientists use the term they are talking about space expanding as a whole but then give no indication or do not include what space expands/expanded into. There may be nothing that space expanded into but for visualization purposes the mind has a tough time grasping that. So Thief as far as what observers/scientists see when they look out into the cosmos I agree partly with what you say. I agree with the rotation aspect, that we see some dynamics which reveal some rotation over all. However I don't fully understand the shock wave idea which you mentioned. As far as I understand the CMB or cosmic microwave background it's like a wall with things written on it. It's a wall of radiation or when radiation started to behave how we usually perceive its activity in our time epoch. The Big Bang is a different time epoch and the wall of the CMB marks a epoch change in the history of the universe. This is how I understand it. When observers see the CMB they are looking back in time to the start of the universe. At that time quantum effects were prominent. It was quantum effects that led to the small differences in densities in different spots of all space. This in the end led to the vast voids of emptiness in space as well as the dense conglomerations of matter like the galaxy clusters. We can thank the quantum for the artistic architecture of the universe we observe now.