50M persistent nodes on a $199 Jetson – 186 ns latency, CPU-only

Two-person team, 18 months in a basement. Just got a flat, fixed-width lattice running 50 million persistent nodes on an 8 GB Jetson Orin Nano:

186 ns hot-path (≤ 3.2 cycles steady-state) 33× larger than RAM (disk-backed streaming) Full crash & power-loss recovery (kill -9 or yank the cable) CPU-only, no GPU, no cloud

30-second video on the page — raw tegrastats, no cuts, recorded this week. We’ve never seen anything hit these numbers on commodity edge hardware before. Curious what people think:

Does this actually solve a real problem for robotics / drones / autonomy? Are there edge workloads where sub-200 ns persistent lookups would move the needle? Has anyone else ever gotten close on a Jetson?

Happy to run live demos or share perf traces if anyone wants to break it