I meant to say there is no intellectual difference behind the genius of a lithic tool or a modern steel unit. Incidentaly, the latest on "Oetzi" is he was slain by his own people! The recovered projectile was barbed, common to that time and Southern Alp region. People to the north used flat based arrowheads. Flat or barbed,chert or steel; some things never change <img src="images/graemlins/frown.gif" alt="" />