In 2006, a physics professor at the

In 2006, a physics professor at the University of Central Florida wrote a paper arguing that it is mathematically impossible for vampires to exist, based on geometric progression. According to the paper, if the first vampire had appeared on 1 January 1600, and it fed once a month (which is less often than what is depicted in films and folklore), and every victim turned into a vampire, then within two and a half years the entire human population of the time would have become vampires.[100] The paper made no attempt to address the credibility of the assumption that every vampire victim would turn into a vampire.