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Not good news for Saul Perlmutter, Rocky Kolb and Michael Turner.
 

On Jul 3, 2015, at 10:27 PM, nick herbert <This email address is being protected from spambots. You need JavaScript enabled to view it.> wrote:

There goes the neighborhood ;-)
 
I suspect this paper is correct.
 
Oh well I will throw in the towel on my Popper falsifiable future hologram picture of dark energy etc since there is probably no future de Sitter horizon after all and “dark energy” will go the way of N-Rays, superluminal neutrinos, the pre-big bang tensor/scalar ratio for gravity radiation predicted by Penrose in cycles of time etc. 
 
The other main problem is the one shared by most “pre-big-bang” ideas: how do you ever test them? Penrose and a collaborator last year created a stir by claiming to see in the CMB patterns of the sort he argues might be expected from black hole decays late in an era before the Big Bang, but it’s not clear there’s a real prediction here, and others who have redone this analysis say they see nothing. Peter Woit
 
 
However, it’s looking better for supersymmetry.
 
“A beautiful theory is murdered by an ugly fact.” Richard Feynman