Design an iOS search and discovery experience that helps people quickly surface older stories and niche topics. Users should be able to narrow results with facets—date range, author, category, and media type (article, video, podcast). While typing, show real-time suggestions coming from the backend, and make them feel instant. The results page should blend different content types in one feed and scroll infinitely, smoothly fetching the next pages without stutter. We'll build this with Objective-C and UIKit in an MVC structure; optimize networking (debounce, cancel, pagination) and fast list rendering.