Posted: Nov 08, 2018 7:37 pm
by ughaibu
ughaibu wrote:
Rumraket wrote:the classic eternal inflationary model of Alan Guth (later modified by Paul Steinhardt and others) predicts a multiverse.
Okay, I'll look into this, because as far as I'm aware inflation is itself an ad hoc solution, (in fact, doesn't your assertion that "it was invented to account for certain observations" amount to acknowledging it to be an ad hoc solution?).
According to Wikepedia: "One of the most severe challenges for inflation arises from the need for fine tuning". Inflation cannot be a defence to fine-tuning if it requires fine-tuning, so, whether it implies multiverse theory of not is irrelevant.