How to Play Indians

This excerpt is basically talking about how the future of Native Americans is so dire that a young Native American, in order to improve his social status, must appear in a Western movie depicting an Indian brave in battle. Of course, Eco is poking fun at how Native Americans were percieved by others. He thought the way the movies were depicting Indians were giving them a false reputation and basically a false interpretation of the way a young brave fought in battle. In his opinion, he thought it was ridiculous that some people actually believed that an Indians mustang couldn't outrun a stagecoach or how the "white man" could so easily pick up an Indians trail. I think Eco was trying to make a point refering to how the movies depicted Indians was not true and Hollywoods version differs from the real life occurences of the West.