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buffalo
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Again, an assumption that the decay rate is constant since the beginning is not provable.The oldest radioactive material on earth is actually older than earth itself: Uranium 238. Its half-life is roughly 4.5 billion years, which means we can use it to date something nearly as old as the universe itself. It formed the same way that every naturally-occurring element heavier than iron did: In the final, spectacular seconds of a star’s life as it went supernova. The way that we can tell how much radioactive material was originally in a given sample is that we know what these elements become as they decay (for uranium, it’s a particular isotope of lead), and we can use the amounts of those “daughter” materials to figure out how much of the original material there was.
When scientists say that “nothing is ever proven”, what is meant is that we use the best models we have available, but if new observations come along which definitively overturn that model then we start looking for a new one. For example, Newton’s model of gravity vs. Einstein’s: The Newtonian model, while useful for simple situations, consistently gave errors when calculating where Mercury should appear in relation to the Sun during an eclipse, if the position was within a certain arc length from our point of view. Einstein gave us a new model, and that model - because it took the bending of light rays by the Sun’s gravity well into account - gave correct predictions of Mercury’s position, as verified by observation. But even Einstein’s model has problems, because it breaks down under certain conditions, so we’re still looking for a model of gravity that can give correct predictions under all circumstances. When one says that something is “proven” in a scientific context, it means that we know absolutely everything about it with 100% certainty, and no further research is necessary or even useful.
Of course God can perform miracles - He’s God. But why would He perform miracles in such a way that we would see false evidence as true? Genesis isn’t a scientific treatise - it’s the account of the beginning of salvation history. It tells us what God did, but very little about how He did it. Faith can tell us the who and what of creation, and reason can give us the how. Scripture is silent about how God formed Adam - it only says that He did, and the materials that He used. Physical anthropology tells us how God shaped the “dust of the earth” through the millenia, culminating in the gift of the breath of life - a rational soul - to our first father, Adam. Adam is the only creature to whom God gives the “breath of life”, so it must be something other than the biological processes we call “life”, because we see other living things all around us.
And I believe every word that is in Genesis. What I don’t do is mistake the history of our salvation for a scientific treatise on biology, geology, and cosmology. The technology we have now is based on the same principles that we use to determine things like the age of the earth. If we’ve gotten the age of the earth wrong because of variable radioactive decay rates, than radiation therapy couldn’t work - both are based on the same model. Not to mention that - like I said above - the amount of daughter isotopes we can detect tell that, for that much decay to have occurred in only 6,000 years, our first parents would have been exposed to over 300 times the lethal limit of radiation. Not could-someday-cause-cancer lethal, but instantly lethal.
That is Our Lord - Body, Blood, Soul, and Divinity - hidden under the appearance of bread.