Clojure and Rust are two popular programming languages with distinct features and characteristics. While Clojure is a dynamic and functional programming language that emphasizes simplicity and expressive power, Rust is a statically typed systems programming language known for its focus on performance, memory safety, and concurrency.

1. Syntax and Paradigm: Clojure is a dialect of Lisp and follows a functional programming paradigm, where functions are treated as first-class citizens and immutability is encouraged. On the other hand, Rust follows an imperative programming paradigm with a syntax that resembles C++. It allows mutable variables and provides low-level control over memory and resources.

2. Static vs Dynamic Typing: Clojure is dynamically typed, meaning variable types are checked at runtime. This allows for more flexibility and rapid prototyping but can sometimes lead to runtime errors. In contrast, Rust is statically typed, ensuring type safety at compile time. This helps catch errors early and optimize performance, but can require more upfront type annotations.

3. Concurrency Models: Clojure provides built-in support for concurrency through its use of immutable data structures and software transactional memory (STM). These features allow for easy parallelism, synchronization, and safe shared access to mutable state. Rust, on the other hand, has strong support for low-level concurrency without sacrificing safety. It uses a unique ownership model and asynchronous programming constructs like channels and async/await to handle concurrency effectively.

4. Memory Management: Clojure runs on the Java Virtual Machine (JVM) and relies on Java's garbage collector for automatic memory management. This allows developers to focus on writing code without worrying about memory allocation and deallocation. In contrast, Rust uses a combination of ownership system, borrowing, and lifetimes to provide deterministic memory management. It ensures memory safety without relying on garbage collection, making it suitable for systems programming.

5. Error Handling: Clojure follows a more lenient approach to error handling, where exceptions are used for control flow. It provides try/catch blocks for catching exceptions, but they are typically reserved for exceptional conditions. Rust, on the other hand, embraces the concept of "zero-cost abstractions" and has an elaborate error handling mechanism. It uses the Result and Option types to handle errors explicitly, ensuring that errors are handled in a safe and predictable manner.

6. Community and Ecosystem: Clojure has a vibrant and supportive community that has developed a rich ecosystem of libraries and tools. It benefits from the extensive libraries and frameworks available in the Java ecosystem due to its interoperability with Java. Rust, being a younger language, has a rapidly growing community and ecosystem. It focuses on system-level programming and provides libraries for tasks like networking, parsing, and cryptography.

In summary, Clojure and Rust differ in their syntax, typing system, concurrency models, memory management, error handling, and community support. Clojure emphasizes simplicity, immutability, and functional programming, while Rust focuses on performance, memory safety, and concurrency for systems programming.