I understand the inflation predicts a nearly scale invariant power spectrum but some have claimed this was predicted before inflation (by Harrison and Zeldovitch?)(adsbygoogle = window.adsbygoogle || []).push({});

My understanding is that perfectly scale invariance would predict ns=1 but inflation predicts ns =.96. So did the prior prediction ( if this claim is true) predict ns=1 or ns=.96 ?

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# I Scale invariance in the power spectrum

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