The dynamic keyword is TRASH

Summary

The transcript discusses the drawbacks and limited use cases of the dynamic keyword in C#, warning developers about its potential performance and type safety risks. The speaker highlights that dynamic can introduce runtime exceptions and slower execution due to the Dynamic Language Runtime (DLR), recommending its use only for specific scenarios like working with JSON, expando objects, or scripting engine interactions. The key practical takeaway is to prioritize strong typing, interfaces, and explicit object definitions in application logic, treating dynamic as an emergency tool or "parachute" rather than a standard programming pattern.