this post was submitted on 29 Mar 2025
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We pretty confident in the age of the Earth and have been pretty confident in its age for quite some time if you asked 20 scientists they will all give you pretty much the same answer. I don't know where you're getting this belief that the age of the Earth is in debate.
I like nature, history, discovery shows and documentaries. But they are always giving different ages of the earth, (ages of various plants, animals, events, etc.) Like, vastly different. So no, there is no overwhelming agreement, other than they may all say a long time ago.
I cannot speak to the quality of the documentaries you're watching since you don't actually list them.
But I can assure you we are extremely confident we know the age of the Earth. In fact we have known the age of the Earth with high confidence longer than we've known age of the universe that contains it.
The ages of various life forms on the earth are much more nebulous but the age of the actual rock that makes the planet up, is known.
We know the age of the universe? Please, that's ridiculous. We don't know, we have done math, and made guesses. If we have an age for it, it's just a theory.
Go look it up. This is known stuff. It isn't a guess it's based on evidence.
Are there any assumptions made, in the determination of the age of the universe? I'm pretty sure there are. If so, then it has not yet been proven and its a theory.
Oh well if you're "pretty sure" then I won't argue with you.
After all, you have a feeling on the subject. Don't bother to look it up or anything. Remaining deliberately uninformed is so much more appealing doing a quick Google search.