Read the following paragraph from the section "Mirrors can change smells." There is much more to learn and discover about the biology and chemistry of taste and smell. Those of us who study the chemical senses hope that our research will lead to tastier and healthier food, reduce the spread of insect-borne disease, improve the lives of people with smell or taste disorders and create a better understanding of the importance of smell and taste. Why does the author include this paragraph in the article?