S-Expressions

S-Expressions (short for Symbolic Expressions) are a way of representing data and code using nested parentheses. Think of them as a structured, text-based format that clearly shows relationships between elements. For example, an expression like `(add 2 3)` shows a function `add` with its two arguments. They are widely used in programming languages like Lisp because they are simple, uniform, and easy for computers to parse. Essentially, S-Expressions are a way of writing complex data and instructions in a clear, consistent format that can be easily read and processed by computers.