As we search more on mobile devices, the way we interact with a search engine changed. Just look at Siri. It may not be a ground breaking technology now but we'

As we search more on mobile devices, the way we interact with a search engine changed. Just look at Siri. It may not be a ground breaking technology now but we're slowing moving to making more and more voice controlled search requests. Some of these requests are better answered by Wolfram Alpha than Google. During the past decade, Wikipedia emerged as the primary source of high quality organized digital knowledge. This, together with the open data policy practiced at may governmental agencies, supplied search engines with quantitative data easy to process and understand. For the next few years, this looks like the biggest change in search engine technology to expect. We are going to switch from mathematically precise queries and semantic processing of the search corpus to a semantic processing of the queries and a reliance on more quantitative data sources.