Whilst secular cosmologists like to romanticise our observations of the universe as “looking back in time”, the scientific reality is that we only actually, directly observe are photons of light as they are captured or viewed from Earth on their journey through space. The history of the universe is thereby modelled based on assumptions (logical extrapolations) about the unobserved history of those photons.
All models of the universe (including the secular Standard Cosmology model) are therefore necessarily formulated around layers of hypotheticals. For example; the original Big Bang theory was a mathematical reversal of our observations of an expanding universe. But the original mathematical model didn’t fit subsequent observations of uniform cosmic background radiation. So the model was changed to include Inflation; a proposal that the initial Big Bang was contained to a small area followed by a massively rapid expansion, and subsequent slowing down, of the universe (without any proposed cause for either expansion or slowing or any direct observation of the event – but fits the math and is therefore now part of the model). Then it was discovered that around 83% of the matter in the universe needed to hold galaxies together by gravity was missing. So a scientifically unobserved substance called Dark Matter was proposed. And even though Dark Matter has never been scientifically observed (a necessary condition of legitimate scientific confidence), proponents of this model constantly tell the community that “we know it’s there”. Due to the gravitational effect of all this matter, scientists expected that the expansion of the universe would be slowing down. However observations indicate that the expansion of the universe is accelerating. We now call the scientifically unobserved energy driving this acceleration Dark Energy.
Now this model may be completely correct, or completely false (or perhaps some of each). We cannot go back in time to make the necessary observations required to verify any aspect of this model. And that makes it unfalsifiable. No current observation could necessitate the complete rejection of the model. Any seemingly contrary observation could be rendered impotent by the claim that “we haven’t figured out how this evidence fits our model yet”. And if we are fair, there does exist a logical possibility that some future discovery or idea may reconcile the evidence to the model. But it is this very possibility that allows us to set aside seemingly contrary observations/facts and renders the model unfalsifiable. This applies equally to both secular and creationist models of reality.
The claim that unfalsifiable means unscientific is debatable. However, neither unfalsifiable nor unscientific mean “logically impossible” or “necessarily untrue”. Any accusation of unscientific or unfalsifiable only speaks logically to our capacity to test a claim - but not in any sense to the possible truth of a claim.
The foundational source of the creationist model is the Bible. The current favoured model of creationists combines the Biblical claim that “God stretched out the heavens” with the implications on time of Einstein’s relativity. Simply; as space was “stretched”, so was time (called time dilation) such that the space stretched away from the Earth is actually older than space on/around Earth. That is, as stretched space results in more space, stretched time results in more time.
Regarding the alleged creationist models presented in the article.
Models 1 & 2: As a creationist for over 2 decades, I don’t ever recall hearing either of these arguments. To present these as typical creationist models therefore employs logically fallacious Strawman reasoning. As presented, model 1 itself is an example of the logical fallacy called Unsupported Assertion. No effort is made by the author to provide the supporting arguments for the claim – so the article immediately demonstrates a lack of rational objectivity. The rebuttal of both models heavily incorporates Innuendo and Unsupported Assertion (both logical fallacies). Unsupported counter-claims do not constitute a rational rebuttal of any position.
Models 3 & 4: Creationists once considered the Cdk issue to be a possibility. However this argument is now broadly rejected by creationists because it raises more problems than it solves. Note the Innuendo in the statement “the velocity of light was infinite or at least millions of times faster than it is now, then slowed down and conveniently stabilized at the current value” – Yet replace “light” with “space”, and you have the secular concept of Inflation (which has been readily incorporated into the secular model).
Model 5: This is a valid attempt by a Physicist to model creationism. Dr. Humphreys freely admits that the model is imperfect. The secular model also contains many imperfections; none of which have warranted a wholesale rejection of secular cosmology. The main rebuttal used by the author is that the some concepts utilised by Dr. Humphreys lack direct observational support. Have they considered that the same is true for the Big Bang itself, as well as Inflation, Dark Matter and Dark Energy (i.e. the entire secular model)? All cosmology models are highly speculative and therefore subject to legitimate scrutiny and criticism.
Model 6: Oddly, the author himself points out that this model does not represent the informed creationist position and that the problems with this model are essentially theological – not scientific. Even though I don’t subscribe to this model, I think this model is logically viable in the sense that God could have created a mature universe without any deception involved. The inconsistencies stem from our interpretations of the observations – not from what the Bible claims. God creating mature people is not a deception about their lack of infant history; even though contemporary observations of adults would indicate a childhood. God creating mature (fruiting) flora does not represent a deception about the history of the plants.
Another model that would reconcile these potential problems would involve God winding the physical universe forward independently of time - In the same way that winding a clock forward represents a physical change, but doesn’t actually alter time.
The author then concludes with Innuendo; “Even though creationists claim they have the truth, they contradict each other as well as science” – seemingly unaware that both the Christian belief and the scientific method explicitly permit consideration and debate of all ideas. Our claim to “have the truth” is a faith claim about the Bible – not a scientific claim about models formulated around it. So this statement represents yet another Strawman fallacy.
Model 9: (not really a model - but a claim demonstrating a logical weakness in the presentation of scientific confidence beyond what has been scientifically observed). Every claim regarding the history of the photon prior to its observation is assumed; how far and fast it has travelled, what lies between the vast amount of space between its origin and the Earth, assumptions regarding how the properties of light are impacted over such large amounts of distance and time, and how those properties should be interpreted. We extrapolate several hundreds of years of observations to billions of years of history. Any hypothesis beyond observation therefore necessarily employs assumption. Assumptions are common in science. They only become problematic when they are ignored; resulting in exagerated levels scientific confidence. Assumptions may be rationally justifiable - but until claims are verified through observation they remain assumptions.
Models 7, 8 & 10 do not represent the informed creationist position.
The author of the presented rebuttal demonstrates that they have not given fair or objective consideration to the actual creationist position - and therefore should not be considered a reliable source of information.