"60 hours to code a search engine", sounds like someone is spending daddy's hard earned money at a high PR agency. Nothing solid in this article at all. This made me LOL - "It understands what a user would like before it serves up the results by dwelling deep into the content of the text, understanding the underlying meaning"
<i>>To test the accuracy of each search engine, he limited his search query to this year's news articles from The New York Times. He created several fictitious users with different interests and corresponding web histories. Tukrel then fed this information to both Google and his interest-based search engine. Finally, the results from each search engine were compared.</i><p>Willing to bet the search phrase did not include "site:newyorktimes.com"