Code is always the final spec. Maybe the "no engineers/coders/programmers" dream will come true, but in the end, the soft, wish-like, very undetailed business "spec" has to be transformed into hard implementation that covers all (well, most of) corners. Maybe when context size reaches 1G tokens and memory won't be wiped every new session? Maybe after two or three breakthrough papers? For now, the frontier isn't reached.