Barycenter Systems ยท Writing https://barycentersystems.com/writing Essays and research notes on mission autonomy under human authority. en Why space missions need a trust boundary, not a smarter model https://barycentersystems.com/writing/trust-boundary https://barycentersystems.com/writing/trust-boundary Sat, 11 Jul 2026 12:00:00 GMT Naveen Joshi NASA's own ranked shortfalls describe a missing systems layer, not a missing model. The essay that introduces the category in plain language. What thirty years of JPL autonomy actually proved https://barycentersystems.com/writing/jpl-thirty-years https://barycentersystems.com/writing/jpl-thirty-years Sat, 11 Jul 2026 12:00:00 GMT Naveen Joshi Remote Agent, CASPER, AEGIS, AutoNav, TRN, Ingenuity: what each system solved, what it deliberately did not, and why the strongest were hybrids with a separate mechanism deciding what may execute. Permits, not promises: what an assurance kernel does https://barycentersystems.com/writing/permits-not-promises https://barycentersystems.com/writing/permits-not-promises Sat, 11 Jul 2026 12:00:00 GMT Naveen Joshi How execution permits work, why the assurance kernel is independent, and what deterministic replay actually buys an accident board. References DO-178C, NPR 7150.2, and ECSS as design targets.