Add requirement for contributions to be ''AI-free''

CONTRIBUTING.md

@@ -129,6 +129,21 @@ requirements).
 
 Before committing anything, please ensure it is properly formatted.
 
+## Generative AI
+
+**Contributions should be without assistance of Generative AI, such as Copilot.**
+
+There are numerous reasons - legally and especially ethically - to be skeptical
+towards and critical of the use of AI. For example, using it is at the detriment
+to your ability to acquire the skills and knowledge needed to understand the
+language, the codebase, the data structures, and the algorithms. Hence, this
+using it will inevitably introduce bugs due to a lack of understanding or
+negligence. Furthermore, it is merely plagiarism with a few extra steps.
+
+Any situation in which an AI assistant would be of benefit is a sign of a missing
+abstraction and/or documentation. In this case, the underlying issue should
+instead be addressed in an Issue and/or a Pull Request.
+
 ## Design Principles
 
 ### §1 Functional-First