(Big Bang Theory): General relativity (GR) is true, sufficiently accurately describing the full birth-growth of space. Consider three evidences:
• …General relativity makes accurate predictions.
• …Space in fact did expand from a hot-dense space.
• …Other evidences indicate: Physical reality (spacetime) began to exist, growing from a singularity.
This is relevant because “FLRW models with ordinary matter have a singularity at a finite time in the past.” [Christopher Smeenk, “Philosophy of Cosmology,” in Batterman (ed.), The Oxford Handbook of Philosophy of Physics (Oxford, 2013), 612.]1
•…Space has an early quantum era (not FLRW); GR won’t apply.
•…Space is not isotropic & homogenous.2
(BGV Theorem): Any Universe eternally inflating/expanding on average requires infinitely-fast travel Right?
• …consider Vilenkin's spacetraveler proof/illustration
This is relevant because an object traveling infinitely fast in space is impossible, producing philosophical absurdities and violating the causality principle (in Einstein’s special relativity). The fate is symptomatic of a singularity.1
So? Couldn’t it simply be that… [All forthcoming]
•…Space contracts on average
•…Because of an infinite contraction phase
•…Space is static on average
•…Because of infinite cycling
•…Because of an infinite contraction phase (during time-reversal)
A beginningless universe (or multiverse) model is true. This is relevant because the Standard Big Bang model under review here is not a past eternal model.
Singularity-expansions (e.g. The Big Bang) aren’t events. After all, “An event takes place within a space-time context. But the Big Bang has no space-time context; there is neither time prior to the Big Bang nor a space in which the Big Bang occurs.” (SEP).