Welcome to The Curious Aztec, San Diego State University’s weekly science-and-research Q&A column! Here, students, alumni, San Diegans, and humans of all stripes pose questions to SDSU’s science and research writer, who will then take those queries to the university’s big thinkers. Will it be rambling and ponderous? You bet! Will your Curious Aztec risk life and limb to plumb the depths of mortal knowledge? Absolutely! Will your question actually be answered? The point is, we’re having fun!