The post discusses the differences in memory safety between Ada and Rust, highlighting that Ada has a limited user base primarily focused on DOD projects while Rust has seen significant adoption in Unix and other systems development. The comments emphasize that questions regarding the preference of Ada over Rust often stem from a broader discourse on language choice and the need for community and development effort to drive technology adoption. Additionally, it touches upon the nuances of memory management in Ada, especially with respect to using ControlledTypes and SPARK in Ada 202x for enhanced safety features. The author indicates that understanding the trade-offs in programming languages is essential since memory safety alone doesn't drive community preference. Overall, the conversation leans towards a technical examination of memory management practices in both languages and the reasons behind their varying popularity and application in modern programming.