Explore the intricacies of dynamic languages toolchain in this 48-minute Java conference talk presented by Attila Szegedi. Delve into topics such as code reuse, parameter type compilation, JVM type signatures, and arithmetic overflow. Learn about math bootstrapping, property type optimization, and type inference techniques. Discover strategies for handling undefined values and multiple types in parameters. Examine dead code elimination, new intermediate language concepts, and symbolic identifiers. Gain insights into scope splitting, optimistic synthetic stores, and the tradeoffs involved in dynamic language implementation. Conclude with a comprehensive summary of linking processes and key takeaways for Java developers working with dynamic languages.