I watched a few of the videos on line at the PI http://pirsa.org/C11008 Some thoughts: it seems to me Penrose did show some new material on observational evidence of CCC, in particular he argued that families of 3 or 4 concentric circles were observed more frequently than a Gausian analysis. I dont think the comparison he had in the talk was what was in his arxiv paper so I think its new, but Im going off memory so might be wrong. Hiranya Peiris said that if there were bubble collisions in the ealry universe, PLanck will find them. Alan Guth argued the measure problem is not specific to inflation but is true for cyclic comsology. This was echoed in Turoks talk, a lot of the the audience agreed with him in what he outlined as the challenges but disagreed that these problems were specific to inflaiton. Neil Turok was challeneged by the audience on the unlikely nature of inflation given calculation using loop quanutm gravity. I presune they were referring to the Ashkebar/Sloan paper . He simply said he didn't believe it, they must have made a mistake. I would be intrgued if he could fill this out rather than argue from personal incredulity. There seemed to be little loop stuff browsing through the video descriptions, I have no idea why this is.