Posted: Nov 09, 2018 2:52 pm
by newolder
Rumraket wrote:
newolder wrote:With regard to inflationary theory and fine tuning, Andre Linde is quoted in a SymmetryMag post on The Growth of Inflation:
... The authors admit that this is only an encouraging first step. For one thing, “stringy” inflation seems to require a very complicated fine tuning, as Linde found in a paper with seven other authors. Linde says that was a record number for him. “The reason is, it took eight authors to fine-tune the parameters to get a nice inflation,” he says. ...


The (Steinhardt's) implication being that a different group of authors could fine tune another inflationary scenario to fit another data set, and so on. That is to say inflationary cosmology is no longer disprovable by any observational data.

And yet there's an author of inflation (at 49:56) in the video I linked above who gives a testable prediction that, he says, would falsify inflationary cosmology. Sounds pretty unambigous to me.

Yes, it's an unambiguous claim that positive spatial curvature falsifies inflationary cosmology. However, here are 4 authors that discuss inflationary cosmology with positive spatial curvature.
https://www.researchgate.net/publicatio ... _Curvature