Eli, an expert on computational logistics and veteran of Tumblr, Shutterstock and other prominent search innovators, has co-founded Constructor.io, an AI search startup that's built an entirely new search engine from scratch. Used by Sephora, Bonobos, and others, Constructor.io is on the leading edge of search tech and discusses how search engines actually work behind the scenes, what "AI" search actually means, build vs. buy, and the shortcomings of traditional search engines like Elasticsearch and Solr.