The author discusses the motivation behind writing a Scheme implementation in Rust in 2025 that focuses on asynchronous programming. They highlight the advantages of Rust, such as safety and speed, which can enhance a Scheme runtime. However, some commenters express skepticism about the proposed benefits of embedding a Scheme interpreter to alleviate issues associated with async programming, particularly regarding stack trace clarity. Questions about specific technical implementations, like hygienic macro expansion, suggest an interest in the intricacies of this language project. Overall, contributors reflect a mix of excitement and caution while emphasizing the importance of clean design in achieving async benefits.