> So basically you're saying that this "God" thingy created the world to look like it evolved and changed but this is the way it always was? Such that he planted fossils and false carbon 14 decay just to fool scientists?
There's a large number of people who believe this.
Its a bit weird, because it implies that God is above lying to his followers. So as a Christian myself, who believes in Omnipotence (all powerful), Omniscient (all knowing), and Benevolence (all-loving), the viewpoint that God would explicitly lie to us is almost certainly against the 3rd peg: its anti-benevolence.
Anyway, different Christians obviously have different beliefs on the matter. I am in agreement with the poster you responded to: it is an... unfortunately... mainstream belief in some Christian communities.
I'm sure there are holes people can poke at my specific denomination of course. So it'd be hypocritical for me to push too much against the belief that "God is tricking us to see the true believers vs the evolutionists". But... yeah, its just not a belief I can get behind.
> Such that he planted fossils and false carbon 14 decay just to fool scientists?
Generally speaking, the argument goes to look at the Old Testament, specifically the Book of Job. In the Old Testament, God tested some of his prophets with incredible tests (ie: letting the Devil kill his kids, take all of his wealth away, etc. etc). So the idea of "God is just testing us" is generally the argument that comes forth.
I guess the general idea is that God can cause issues that seem big to us, but are small in the great scheme of His plans. If you want the religious background on this particular school of thought. The Book of Job has the prophet lose everything, but eventually gains greater prosperity in the end. In particular, Job deserves prosperity because even when all hope was lost, he kept his faith.
Still, that fundamentally doesn't quite explain why God would particularly lie to us humans about the "evolution" issue. So I've never personally liked this particular religious argument. I find it far more likely that God would prefer us Humans to discover science and properly make discoveries and advance our culture for the good of all mankind.
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It comes down to Biblical Literalism. Some people believe that the Bible is literally true. That there were exactly 7 days of creation, that Methusala lived over 900 years old... that a dude named "Samson" had magical hair, etc. etc. And since Biblical Literalism is a foundational peg to those denominations, they go through great pains to prove it.
Alternatively, if you're in my camp, you are open to interpreting the Bible. My denomination believes that the Bible is a collection of stories that God wants us to know about. Not necessarily that the word is literally true.