Words mean things. “This is a green fence,” can be parsed, the adjective “green” and the noun “fence” can be made more precise, but the basic meaning of words is clear. I once had a business trip to plant where everyone spoke French. They found the one man who knew a little English. Between my knowledge of a little French and his knowledge of a little English, we completed our transaction. The old I Love Lucy show has a classic skit of a trip to Italy and the difficulty of a language (in that case several languages) barrier. No matter how difficult, language barriers can be overcome because words have meaning.
While some people believe that all reality is nothing but an illusion, for the rest of us, the material universe exists. We use words to describe it. The simple existence of the world is consistent with our experience. As John opens 1 John “what we have heard, what we have seen with our eyes, what we have looked at and touched with our hands.” Reality either came into existence at some point in time or it is eternal. We describe this material existence with words.
Entropy says that all mass/energy transformations either conserve existing mass/energy at the level before the transformation or make the mass/energy less useable (a downward transformation as to the total available mass/energy). There has never been an observed exception to entropy.
This is consistent with the statement “In the beginning God created.” In six days God input and organized the mass and energy of the universe. Then God rested, that is, ceased inputting and organizing mass and energy. Later, God told Moses what He did and Moses recorded it in writing.
Today, the vast majority of mankind chooses to believe that this record is not true. They claim that their belief in deep time is based on evidence. But the evidence available to us today must be interpreted. We observe the surface of the sun, interpret that data and make assumptions about how the interior and core of the sun operate. These can be valid scientific theories, as long as we accept the limitation of being unable to verify our theories with observations.
These limitations apply to everything dealing with the past. In the recent past, we have written records to support the observable data. The recent past can be as recent as the assassination of JFK, or it can be the eruption of Mount Vesuvius burying Pompeii in A.D. 79. But without written records, we depart from science and rely entirely on interpretations of what we can observe today.
A light year is a unit of distance, not time. A God Who can speak the universe into existence can also place the photons of light across billions of light years in an instant of time.
Radometric samples are accurately handled and honestly evaluated in laboratories all over the world. But using the result of accurate laboratory information to arrive at a deep time date is a leap of faith. It is simply impossible to know either the original condition of the sample or the conditions prior to any witnesses who wrote down their observations. Since we know nothing of the condition of the original sample or what has happened to the sample since then, the laboratory results can only give us the oldest possible date in a range of dates. The interpreter also believes that nothing ever had any affect on the sample. A true scientific interpretation of the data would say that the age of the sample could be anywhere within a range beginning just before the sample was tested up to the oldest possible date.
Any date relying on counting existing material, such as the salt content of the ocean, varves, the number of craters on the moon or the layers in a glacier all require assuming deep time to be true to return a value using deep time. There is no observable evidence possible to scientifically prove that present processes formed the salt in the sea, the position of the continents, the number of craters on the moon, the formation of glaciers or any other current process.
The Grand Canyon was formed by an upthrust (uplift). Once we recognize that catastrophes, even local ones, formed the world we know and see today, we must state scientifically that the present is not the key to the past.
Using language in the normal way we use language, the only evidence of deep time is a religious leap of faith. If you believe in deep time, it is because you choose to. Not only is there no evidence of deep time, because we cannot send observers back in time (not even with the Hubble telescope), evidence is not possible.
“Unbelievable” is the proper response if you do not believe. Because it is completely belief.