3 years ago, I came across a search engine by google (i believe) where I would ask any question, then the search engine would find text from a journal article or non-fiction book to answer that question. This search engine understood the question and found the closest answer without needing to match words from the question.
I am trying to find this search engine again, however, struggling to find it.
Does anyone have a link or know what it's called?
Found it - https://books.google.com/talktobooks/