The matter/energy was not evenly distributed after the big bang is this correct? I like to think of the big bang as all matter/energy in a perfect sphere that explodes out perfect and symetrical, but the evidence proves otherwise I guess? Other branes pulling perhaps on our universe altered the expansion in different areas? The rate of expansion has increased over time making it difficult to extrapolate back as well I suppose? Perhaps a supermassive blackhole resides in the spot in our current universe where the big bang occurred due to its age and the probability that alot of matter would have been in closer to the origin????