Also keep in mind that God was telling this story to people who lived about 4000 years ago. Their understanding of how the world worked was almost nil. For those who believe in a non-literal interpretation of Genesis, they see it as more of a parable. No one would have understood “In the beginning, there was a cosmological Big Bang, and God created the universe in a single act of creation at about 50 million degrees, and atomic structure started to coalesce… etc.” The story simplifies it as a metaphor in a way that people who were just developing civilization could have comprehended.
Of course, it is also allowed by the church to interpret the story literally, if one so chooses.
Incorrect. God was telling people what He knew and could have easily added technical details in simplified form.
"The Time Question
Much less has been defined as to when the universe, life, and man appeared. The Church has infallibly determined that the universe is of finite age—that it has not existed from all eternity—but it has not infallibly defined whether the world was created only a few thousand years ago or whether it was created several billion years ago."
"Real History
"The argument is that all of this is real history, it is simply ordered topically rather than chronologically, and the ancient audience of Genesis, it is argued, would have understood it as such.
"Even if Genesis 1 records God’s work in a topical fashion, it still records God’s work—things God really did.
"The Catechism explains that “Scripture presents the work of the Creator symbolically as a succession of six days of divine ‘work,’ concluded by the ‘rest’ of the seventh day” (CCC 337), but “nothing exists that does not owe its existence to God the Creator. The world began when God’s word drew it out of nothingness; all existent beings, all of nature, and all human history is rooted in this primordial event, the very genesis by which the world was constituted and time begun” (CCC 338).
“It is impossible to dismiss the events of Genesis 1 as a mere legend. They are accounts of real history, even if they are told in a style of historical writing that Westerners do not typically use.”
Source: Catholic Answers library
Peace,
Ed