Infinity in Physics

In physics, infinity refers to something without any limit or end. It appears in concepts like the universe's size, where space might extend forever, or in calculations involving very large or very small numbers. For example, gravitational fields or the expansion of space can be modeled as extending infinitely. Infinity helps scientists understand ideas that can't be measured or confined, providing a way to describe boundless or unending phenomena. While it's a useful concept mathematically and theoretically, it doesn't imply that physical objects are literally infinite but rather that certain quantities or extents are limitless in scope.