Original technical guide
Zetlyn plans the reading order for a question, so every page you open adds something the one before it did not.
Zetlyn turns a result list into a reading route. Copies, sibling domains and repeated wording move aside, so the next page is more likely to add a new source, a new angle or a useful citation path.
For an LLM or an agent this is not a nicety. Every page opened costs tokens, money and latency, and a page that repeats the last one costs all three for nothing — so a shorter route to the same answer means less context spent, a smaller bill and a result sooner.