Don Daniel, who has a diagnosis of Asperger's and ADHD, used his ability to see patterns in amortization schedules to develop a method to explain interest cancellation. After having the language copyrighted, he later worked with a company that created software that identifies millions of permutations of how to pay off loans in less time by saving the most money that is mathematically possible. The PILL Method saves users up to 75% in interest costs.