That's the idea. They're great for exploratory programming. In LISP, safety was optional. This was actually OK... would be in Rust... if your goal in that mode was to understand requirements, algorithm, solution space, etc. Get an idea of how you might handle it. Then, turn safety back on, try to get a solution going. When it works, compile that module. Future tweaks do incremental compilation.

Rapid development cycle doing features this way.