Why Are So Many Tortilla Chips Triangles?

These shapes force the eater to form a Wallace (of Wallace and Grommit) mouth shape for minimizing messiness when the chips have flavor powders, dip, queso, or nacho toppings. These chips can be (and have been) hazardous, especially if the toppings are hot, melted, or both. Ow! Read the entire article and comment there, please.