I was under the impression that originally the main impetus for inflationary Big Bang was that the original Big Bang model implied a finely tuned Universe, or highly unlikely starting conditions for the Universe. In other words, the flatness and horizon problems, etc., don't necessarily indicate the original Big Bang has to be wrong. It just implies the Universe had to have a finely tuned beginning. Well, perhaps the Universe really is fine tuned and our desire to avoid theories that seem to "predict" very unlikely starting conditions for the Universe has led us astray. Since neither models go back to T=0, perhaps there was a mechanism that forced the Universe into what appears to be a finally tuned beginning. In other words, it isn't really a highly unlikely scenario - it only seems that way due to our lack of understanding of unknown physics that came into play at the very beginning. So, I guess my questions is are there recent advances in cosmology that show additional advantages to the inflationary model and that exclude the original Big Bang model as impossible now. Thanks.