I would have to say it depends on the Christian! Strict creationists will tend to look to the Bible as a source of scientific knowledge. Armed with it, they can "disprove" old earth theories, evolution, etc.<br /><br />I would have to say that a very large number of Christians, however, do not look to the Bible for this reason. They (and I) would say that the Bible was never meant to communicate the type of information that the Creationists are trying to pull out of it.<br /><br />In my opinion, the first couple of chapters of Genesis communicate only two very important ideas.<br /><br />1) God created the Earth, the universe, and mankind. Although it gives a method and a timeline for creation, I see no reason to accept the story as literal truth. It was written to be understandable to those who were reading it 4000 years ago. The day 1 through day 7 sequence is not important. What is important is that one God did the work.<br /><br />2) Man turned away from God. It does not matter if there ever was a real place on this planet called Eden or even a real person named Adam. What matters is that man rejected God as the source of life, goodness, etc.<br /><br />I hope this helps!<br /><br />Incidentally, I'm not even sure why it matters to your friend whether Moses came up with the idea that the Earth was round, unless you were trying to argue with him that the Bible is not a good source of science, and he was responding with various examples to try to prove that it is so he could then extrapolate to Creationism from that...