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Find a fossil with a measured ratio of 16 trillion to 1 (C12 to C14)

This means 4 half-lives have expired giving a date about 23,000 years

8 trillion to 1:  1 half-life instead of 4 = age 5,000

What if the ratio started at:

2 trillion to 1:  3 half-lives instead of 4 = age 17,000

Example of Assumptions and Dating

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