In summary, an applied mathematician is a professional who uses mathematical principles and techniques to solve real-world problems and improve processes in various fields such as science, engineering, and finance. They possess a strong understanding of mathematical theories and methods and apply them to practical situations. As for fact checkers, they are individuals who verify the accuracy and validity of information presented in various forms of media, such as news articles and social media posts. They use research and critical thinking skills to analyze and confirm the reliability of information before it is published or shared. Both applied mathematicians and fact checkers play essential roles in ensuring the accuracy and efficiency of processes and information in various industries.