Although at first, these sources seem diametrically opposed, the importance of story is essential in the sciences.  As Okri points out, the only limitations we face are the limitations in our own imaginations.  The story of metallurgy in Africa emphasizes the ingenuity and creativity of ancient African peoples.  Further, the processes and uses of iron have carried through time and space.  As illustrated by the World Heritage Site at Douroula in Burkina Faso, African peoples have utilized their lands and technology to their advantage for millenia.  However, we must also consider the obverse of Okri's argument and recognize that narrative can also undermine legitimacy and authority.  As evidenced in earlier lessons in this course, one must examine the many stories of Africa, including science and mathematics, to develop a deeper understanding of both Africa and the world.