Young Earth Creationism (YEC)

It just keeps getting deeper and deeper. @FreeInChrist posted about this one,

The "Intermittent-day theory" says that the days in Genesis 1 are twenty-four hours long, but that there are gaps in time between the days. Much of the creative activity of God takes place within these gaps.

Deeper indeed. Here's some thoughts I previously wrote on the matter:

It seems we have clear indications even ancients could read Genesis 1 right off the bat as allegorical even in light of internal considerations. I still tend to imagine a literal Adam and Eve walking in a garden on earth somewhere, but my mind practically implodes trying to fit that into any scientific evidence we have. As an agnostic I simply accept that science does seem to indicate things by evidence, and I also accept the Bible is inspired and believe it to the best of my ability. I accept both and have no idea how they harmonize, no matter how contradictory they seem. I certainly have speculated on it.​
But here's the deal. Does the Bible itself really indicate to us how important this particular doctrine might be? Is it as serious an issue as some people make it? Does a whole lot ride on this literal or non-literal interpretation of days? After a lifetime of serious Christian living, I really struggle to see it as a doctrine that has that much effect on us spiritually. The Bible in my view would warn far more against strife and division than an honest struggle with whether Genesis creation days were literal or not.​
Some of us are deep thinkers, and we just honestly struggle maybe with that kind of childlike acceptance of a thing I guess. For example, did you know that every day the earth is slowing in rotation a tiny bit? That means there is not even an absolute standard for what a solar day consists of. Not to mention if we throw in relativity of the observer, and the effects it seems to have on the slowing down of time, or how we can even measure time. We have a simplistic 7 day creation week where hugely broad categories like plants or birds are within a certain day. There are creatures that seem both plant and animal. There are creatures with birdlike properties but without a clear consensus on their categorization. We have, several days without even a sun to orbit or create any effects of shadow. Was the earth orbiting? Was it spinning? Were our galaxy's arms created around the central solitary existing planet of earth?​
Adam and Eve lived in a world in which heaven and earth merged in a glorious fashion and was very unique where everything was very good. This arrangement was stripped away after the fall of man, and it seems that we were left with mere remnants of a once perfect environment to live forever. Scientists can only study and have understanding of a fallen world/universe.​
I've never heard any good explanation for why the Genesis 1 days have to be literal. They pull this arbitrary criteria out of the hat because even in the start of Genesis two we already have a figurative use of yom and we are not even out of creation. Nobody argues that God created everything in one day, but it say a singular day in Genesis 2:4:​
in the day of YHWH God's making earth and heavens​
And this thoughtless wooden literalism here runs into other problems for anyone that actually takes it seriously instead of some dogma to get a badge of orthodoxy. Our solar earth day is not static, the earth is gradually slowing down minutely. The Earth's rotation is slowing down from rotational energy transfer to the moon's orbit through tides. The moon is very slowly increasing its orbital radius. Every 18 months on the average, with variation, a leap second is added to planetary time keeping to keep the day consistent with atomic clocks and astronomical observations. So what exact amount of time was it? An average of every solar day the earth ever experiences? The original period of time of the very first day before it began slowing? Why does this exact amount of time matter? What about the theory of relativity that shows there is no standard time anyway, and all time is relative to each observer? If I believe the first 6 literal 24 solar days were a few seconds off of what they actually were am I going to hell for unorthodoxy?​
Does John 1 find any symbolism in Jesus being the Light and the Spoken Word? Does the Spirit hovering over chaos, does night coming before day, symbolize the curse of original sin that we are born into, and the Redemption God brings in Christ? Are there not signs of poetic speech here, and allegories the rest of the Bible unpacks for us? Isn't the important thing just that God made everything when we have no earthly idea of exactly how anyway?! Might there be other spiritual meanings and significance to this passage?!! How is it relevant to anything at all outside of a spiritual and prophetic symbolism of what a day stands for? It's just ridiculous. We are getting overly dogmatic with some legalistic mindset to insist otherwise. The same kind of logic would argue dogmatically for a flat earth, since that is the wooden way to read the Bible!​
Read how open the interpretation was to some ancients, who knew the original languages well, and spoke them natively:​
It was not only, however, with the (Scriptures composed) before the advent (of Christ) that the Spirit thus dealt; but as being the same Spirit, and (proceeding) from the one God, He did the same thing both with the evangelists and the apostles—as even these do not contain through–out a pure history of events, which are interwoven indeed according to the letter, but which did not actually occur. Nor even do the law and the commandments wholly convey what is agreeable to reason. For who that has understanding will sup–pose that the first, and second, and third day, and the evening and the morning, existed without a sun, and moon, and stars? And that the first day was, as it were, also without a sky? And who is so foolish as to suppose that God, after the manner of a husbandman, planted a paradise in Eden, towards the east, and placed in it a tree of life, visible and palpable, so that one tasting of the fruit by the bodily teeth obtained life? And again, that one was a partaker of good and evil by masticating what was taken from the tree? And if God is said to walk in the paradise in the evening, and Adam to hide himself under a tree, I do not suppose that anyone doubts that these things figuratively indicate certain mysteries, the history having taken place in appearance, and not literally.​
— On first principles, Book 4, Origen (born 185 AD)​
“First, the account given in Scripture of the Creation is not, as is generally believed, intended to be in all its parts literal. For if this were the case, wise men would not have kept its explanation secret, and our Sages would not have employed figurative speech [in treating of the Creation] in order to hide its true meaning, nor would they have objected to discuss it in the presence of the common people. The literal meaning of the words might lead us to conceive corrupt ideas and to form false opinions about God, or even entirely to abandon and reject the principles of our Faith. It is therefore right to abstain and refrain from examining this subject superficially and unscientifically. We must blame the practice of some ignorant preachers and expounders of the Bible, who think that wisdom consists in knowing the explanation of words, and that greater perfection is attained by employing more words and longer speech. It is, however, right that we should examine the Scriptural texts by the intellect, after having acquired a knowledge of demonstrative science, and of the true hidden meaning of prophecies. But if one has obtained some knowledge in this matter he must not preach on it, as I stated in my Commentary on the Mishnah (Ḥagigah, ii. 7), and our Sages said distinctly: From the beginning of the book to this place--after the account of the sixth day of the Creation--it is "the glory of God to conceal a thing" (Prov. xxv. 2).”​
— Maimonides, Guide to the Perplexed (born 1135 AD)​
”What kind of days these were it is extremely difficult, or perhaps impossible, to determine”​
— Augustine, City of God, 420 AD.​


More reading here:

 
The light from distant stars does not have to reflect the billion of years distance commonly purported. Barry Setterfield has presented the evidence that the speed of light has changed. See https://barrysetterfield.org/ You can check out the chronology that he has built off his findings on the change of the speed of light at https://www.ldolphin.org/chronbarry.html -- Part of the details of this is that rate of radioactive decay is connected with the variance of the speed of light over time. So, the decay happens quicker in the earlier time of the earth.
Nowadays though, the speed of light variance is smaller -- following a small oscillation instead of the exponential decay Setterfield reveals beginning with the data of centuries ago. But this variance can be hidden in today's metrology that uses standards built on the speed of light at the time the standards of measurement are being determined. (I suppose this will remain insignificant change though.)
 
It's an interesting idea, but I don't find it personally convincing.
Sure. Following the science has gotten a bad reputation these days.

He is proposing this as a physicist. Also, L Dolphin is a physicist. The papers and analysis are based on the actual scientific data within the verified tolerances of the experiments of two or three centuries. It seems that the scientific community has accepted an axiom (i.e., held without proof) that is not scientific when they deny the change of speed over time. However, the theory probably is correct that the speed of light is the same throughout the universe at any instance of time.
 
I would think that "following the science" would include what other scientists had to say as well.

But that's just me.
Not exactly true. It is not what they say that counts but what the data in proper interpretation shows. Constants found in science are taken for granted for the values that have been identified. They do not have reasons why those have certain values, unless they are derived from other constants.
I figure you have looked into some of this stuff though.
 
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I figure you have looked into some of this stuff though.

I think ChatGPT makes some significant observations about it. The idea that any other physical laws interacting with c would also have to change along with light I find particularly compelling.

The idea that the speed of light (c) has changed over cosmic history—sometimes called varying speed of light (VSL) theories—has been suggested as an alternative to things like cosmic inflation. But this runs into significant problems, both theoretical and empirical. Here are the main issues:

1.​

  • Special Relativity makes c a fundamental constant that sets the structure of spacetime itself. If c varies, it’s not just “light” that changes speed—it alters causality, simultaneity, Lorentz invariance, and the mathematical consistency of relativity.
  • A changing c requires rewriting much of modern physics: relativity, electrodynamics, and quantum field theory all rely on c being fixed.

2.​

  • The speed of light is a dimensionful constant (measured in m/s). Changing a dimensionful constant is ambiguous unless you also define how units change.
  • What’s really physically measurable are dimensionless constants, like the fine-structure constant (α = e² / (ħc)). If c changes but α stays constant, it has no observable effect—because you could just be rescaling units.
  • So, proposals must explain which constants vary and why, not just say “c changed.”

3.​

  • Light from distant galaxies and quasars lets us probe whether α (and thus potentially c) has changed over billions of years. So far, measurements show at most extremely tiny variations—if any at all.
  • The constancy of c is strongly supported by:
    • Atomic spectra in quasars (very sensitive to α).
    • Oklo natural nuclear reactor (2 billion years ago) constrains α variations to less than parts per 10⁸.
    • Cosmic Microwave Background (CMB) and Big Bang Nucleosynthesis (BBN) would look very different if c varied significantly. Observations agree with constant-c predictions.

4.​

  • Some VSL theories were proposed to solve the horizon problem (why distant regions of the universe have the same temperature). But:
    • Inflation explains this and predicts the CMB power spectrum, which matches observations.
    • VSL models struggle to produce predictions that match CMB anisotropies and structure formation.

5.​

  • Varying c could imply that conservation of energy or momentum doesn’t hold in the same way across time.
  • It risks introducing violations of causality, since light cones (the boundaries of what events can influence each other) would change shape across time.

6.​

  • A good physical theory explains why a constant would vary. VSL proposals usually just postulate the variation rather than deriving it from deeper physics.
  • By contrast, inflation has a mechanism (scalar fields with potentials) that fits into particle physics frameworks.

✅ In short: The main problems with VSL are (1) it undermines relativity, (2) it’s not clear what “varying c” means physically unless dimensionless constants change, (3) astronomical and lab measurements show c is effectively constant, (4) it fits observations worse than inflation, and (5) it lacks a well-motivated mechanism.
 
Speaking of ChatGPT

The idea of “6 literal 24-hour days in creation” refers to a particular interpretation of the Genesis creation account in the Bible, specifically Genesis 1. Here’s a breakdown of what this means and the perspectives around it:


What It Means:
  • Literal 6-Day Creation is the belief that God created the universe, Earth, and all life in six consecutive 24-hour days.
  • Each “day” in Genesis 1 is understood as a literal solar day (evening and morning), not symbolic or long periods of time

Biblical Basis (Genesis 1)

Each creation day ends with:

“And there was evening, and there was morning—the first day.” (and so on through the sixth)

This pattern supports the view of normal 24-hour days.

Theological Emphasis:

Those who hold this view often emphasize:

  • Biblical inerrancy – the Bible means what it says.
  • God’s power – He could create everything instantly if He wished.
  • Moral foundation – Belief that Genesis is foundational for doctrines like sin, marriage, and the Sabbath.
 
I think ChatGPT makes some significant observations about it. The idea that any other physical laws interacting with c would also have to change along with light I find particularly compelling.

The idea that the speed of light (c) has changed over cosmic history—sometimes called varying speed of light (VSL) theories—has been suggested as an alternative to things like cosmic inflation. But this runs into significant problems, both theoretical and empirical. Here are the main issues:

1.​

  • Special Relativity makes c a fundamental constant that sets the structure of spacetime itself. If c varies, it’s not just “light” that changes speed—it alters causality, simultaneity, Lorentz invariance, and the mathematical consistency of relativity.
  • A changing c requires rewriting much of modern physics: relativity, electrodynamics, and quantum field theory all rely on c being fixed.

2.​

  • The speed of light is a dimensionful constant (measured in m/s). Changing a dimensionful constant is ambiguous unless you also define how units change.
  • What’s really physically measurable are dimensionless constants, like the fine-structure constant (α = e² / (ħc)). If c changes but α stays constant, it has no observable effect—because you could just be rescaling units.
  • So, proposals must explain which constants vary and why, not just say “c changed.”
There does not have to be an explanation how speed of light changed. The data itself shows the change of speed of light. It is the data that has to be addressed. As to certain constants, the effects are nullified if they both are related to speed of light but, for example, inversely. I'm not checking it right now but α could be unnoticed if ħ is proportional to the inverse of speed of light.

3.​

  • Light from distant galaxies and quasars lets us probe whether α (and thus potentially c) has changed over billions of years. So far, measurements show at most extremely tiny variations—if any at all.
  • The constancy of cis strongly supported by:
    • Atomic spectra in quasars (very sensitive to α).
    • Oklo natural nuclear reactor (2 billion years ago) constrains α variations to less than parts per 10⁸.
    • Cosmic Microwave Background (CMB) and Big Bang Nucleosynthesis (BBN) would look very different if c varied significantly. Observations agree with constant-c predictions.
I think Setterfield as addressed this distant light as functioning in a universe system that also nullifies the effect of change of speed of light.

4.​

  • Some VSL theories were proposed to solve the horizon problem (why distant regions of the universe have the same temperature). But:
    • Inflation explains this and predicts the CMB power spectrum, which matches observations.
    • VSL models struggle to produce predictions that match CMB anisotropies and structure formation.

5.​

  • Varying c could imply that conservation of energy or momentum doesn’t hold in the same way across time.
  • It risks introducing violations of causality, since light cones (the boundaries of what events can influence each other) would change shape across time.

6.​

  • A good physical theory explains why a constant would vary. VSL proposals usually just postulate the variation rather than deriving it from deeper physics.
  • By contrast, inflation has a mechanism (scalar fields with potentials) that fits into particle physics frameworks.

✅ In short: The main problems with VSL are (1) it undermines relativity, (2) it’s not clear what “varying c” means physically unless dimensionless constants change, (3) astronomical and lab measurements show c is effectively constant, (4) it fits observations worse than inflation, and (5) it lacks a well-motivated mechanism.
You will find all these sufficiently irrelevant if you examine Setterfield's analyses. I addressed one, namely that it is true the speed of light is the same across the universe. As I recall, Setterfield supports that concept and explains how it does not cause a problem for what he has derived. I cannot say if possibly a point is shared here that he has not addressed.
 
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