Please Register or Log in to view the hidden image! I find it hard to accept that, because,  we are able to determine cosmological red shift. By my reckoning of the Universe was starting to contract, the blue shift would be easier to discertain. The blue shift would not be emanating from any dense region. The dense phase would be just before what he describes as the big bounce and the density would be totally inhospitable to life. I didn't say that. Quoting the link, he said himself, that any verification of gravity waves would invalidate the cyclic model. http://blogs.scientificamerican.com/cross-check/physicist-slams-cosmic-theory-he-helped-conceive/ All I said was that we already have reasonably considered indirect evidence for gravity waves. I don't believe that the BB will be surpassed any time soon.