The feedback loop is too long, it's not like a software development harness that can direct the model to write some tests for complex behavior, and iterate unti

The feedback loop is too long, it's not like a software development harness that can direct the model to write some tests for complex behavior, and iterate until they pass. There a lots of things that can be subtly wrong, and it gets much worse as your signal frequency increases, or you have to deal with high power/radio/etc. The model (agent) has no way to validate its work.