How do you explain that even wandering in the broad wide sky would run into something you don't want to meet?

This is a particular problem if you change something the generated code relies on, as the generated code will go into error and users will generally delete the code and re-run the generator.

A further difficulty is the lack of tools for working with parallel code, such as compilers, to translate human-readable code into something a microprocessor can run, and debuggers to find mistakes.