The point not whether or not the Bible specifies a 5000 year timeline or a 6000 year timeline. The point is that the Biblical timeline is verifiable false and that it is foolish to take it as literal Truth. I do not believe in the infallibility of current science. I believe that science is a progression, and that it is through science that human kind has expanded our collective understanding of the universe. Science offers a 'best explanation' for any given phenomena. Science that claims to do anything else is arrogant and presumptuous.