You've probably visited sites like Airbnb, Yelp, and Trulia a billion times as an internet user. They have hundreds of pages of information and appear to be at the top of hyper-specific search results all the time.
Simply defined, programmatic SEO is a way of dealing with the increasing volume of search traffic by publishing landing pages on a massive scale.
Watch tech create wonders by using scraped data, automation, and the Webflow API. When you apply all of this to create landing pages in significant quantities, you will notice results.