keith99
sola dosis facit venenum
What if they do turn to recorded history for authentication? If we measure an object with known age and find it to be as old as the object records itself to be - say, we use wood found in a grave with a marked age on it. If the measurement turns out to be accurate, why can't we then go to measure things that are older?
We can, but only so far. Dating wood would be Carbon 14 dating. It is based on how much carbon 14 there is in the wood, half of it decays every 5370 years.
This means the farther back you go the less there is. There was not all that high a percentage to start with. Pretty quickly there is not enough left to make an accurate calculation.
One can go back farther than any marked grave, but not back to the time of dinosaurs.
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