@jb55: P-adic numbers are a type of number system that have applications in various fields such as number theory, algebraic geometry, and physics. They are particularly useful in studying the behavior of polynomials and their roots. One of the key features of p-adic numbers is that they allow for a different notion of distance between numbers, which can be useful in certain contexts. For example, p-adic numbers can be used to study the distribution of prime numbers, and they have applications in cryptography and coding theory.