Julia was designed from the very beginning to be highly performant. Julia programs can be compiled to native code that is efficient for multiple platforms using LLVM. Multiple dispatch is a paradigm that Julia uses, allowing it to easily express many object-oriented or functional programming patterns. This talk explains why multiple dispatch works so well. Julia is dynamically written, feels like a scripting languages, and supports interactive use. Julia offers asynchronous I/O and metaprogramming. It also supports profiling, profiling, logging, debugging, profiling, and more. Julia allows you to build complete applications and microservices. Julia is an open-source project that has over 1,000 contributors. It is available under the MIT License.