Do code harnesses that build themselves count as recursive self improvement, or does it need to be the AI itself to qualify for the term? I always was fascinated (obsessed?) by robots that build robots, or even things like this that can contribute a lot to making the next version of itself: https://buildyourcnc.com/products/cnc-machine-blacktoe-v4-2x... (cnc router that cuts plywood, and is made out of cnc-router cut…
Anyway, what does recursive self-improvement even means for neural-network based AIs? It's not clear it's possible at all.