I built a testbed comparing two ways of governing a hospital delivery robot:(reddit.com)

I built a testbed comparing two ways of governing a hospital delivery robot: a conventional task pipeline and one governed by a constitutional layer I call NA. The constitution works through directional asymmetry: claims about the world can only be demoted, never promoted, without evidence, and memory is append-only so the robot can not quietly rewrite what it believed earlier. Across 13 scenarios (blocked corridors, conflicting instructions, a patient in the path), the conventional pipeline completed safely 15.4% of the time. The NA-governed pipeline completed safely 100% of the time, and the failures it avoided were the interesting kind, where the robot’s confidence outran its evidence. The whole thing runs deterministically in Python so anyone can replay every decision, and I’m now putting it on a physical robot built on a Raspberry Pi 4. I have never done this before, am I reinventing the wheel here? Happy to share the code and answer questions about the architecture. submitted by /u/willybbrown [link] [Kommentare]