I am a believer in all of Sagan's views and I believe the Earth is billions of years old...however...when I read the following point from Carl Sagan it raised a question in my mind.
Sagan talks about the age of the Earth and the universe. He talks about how bible thumpers believe the Earth and universe is around 6000 years old.
He claims that the Earth must be older than 6000 years old because we see light coming from distant galaxies that is millions and billions of light years away...meaning that the light must be at least that old.
Isn't it possible though, at least theoretically, that the universe could be billions of years old but the Earth not as old?
In my mind, just because we see light coming from distant galaxies that is old, doesnt mean that we ourselves are old.
Can someone add insight here?