This paper already has 2 citations claiming that it can be explained using feedback processes, including 1 rebuttal. I would be very curious on your take on this. ]]>

I haven’t seen that one.

]]>Thanks, Peter. I am also curious to hear your take on Stacy’s paper on radial acceleration relation in rotationally supported galaxy and related responses and counter-responses to that paper.

]]>I have also shown that not only do the supernova data indicate a universe very homogeneous, even down to the scale of a supernova beam (which is probably the thinnest object every studied by science), but even each beam is probably a fair sample of the universe, not just when one averages over all beams (or all the sky, which is not necessarily the same).

]]>I’ve just glanced over it, but looking at their figure 2, I don’t see much difference. Yes, one can rule out all non-accelerating universes at three sigma or so, but these are all of really low density. Of course, there is always the question what a particular test shows and what it show combined with other tests (“cosmic data fusion” as Sarah likes to say). On the face of it, their figure 2 looks like very good evidence *for* the concordance model. More interestingly, a negative lambda is still allowed at 3 sigma. Is this region just not in the figure (if so, why), or did they have a prior that lambda cannot be negative?

Even if one doubts the supernova data, even if one ignores them completely, then the concordance model is still essentially the same. These days, the CMB alone can give us the concordance model with much smaller uncertainties than just the supernova data. In fact, what is really interesting is that, although the contours are broad, the best-fit values using just the supernova data are almost dead on the concordance model. (I note that the authors of the *Nature* paper, like most authors, a) assume a completely homogeneous universe and b) don’t even mention this explicitly. As I show in the link above, one can turn this around and, assuming the concordance model, use the supernova data to tell us something about the clustering properties of dark matter.)

Please see my latest post: https://telescoper.wordpress.com/2016/10/26/a-non-accelerating-universe/

]]>Is there an accepted version of the paper publicly available?

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