All 81 experiments, left → right in discovery order; each arc links an experiment to the kept design it built on. The shaded bands are the 5 evaluation eras — each time the eval set or the metric was corrected the lineage was wiped and the search restarted from a fresh baseline, so no arc crosses a band boundary. Nothing in the last band inherits from the four before it, which is exactly why the final run had to rediscover from scratch what earlier eras had already found. Hover to trace ancestry back to that era's root; experiments in the current era click through to the research log.