Earlier this week Google spent ?400m buying a UK firm that specialised in artificial intelligence.
DeepMind is a privately-held company founded by Demis Hassabis, a 37-year-old neuroscientist and former teenage chess prodigy, along with Shane Legg and Mustafa Suleyman.
According to DeepMind's website it builds "powerful general-purpose learning algorithms".
But what does Google plan to do with its newly purchased expertise?
The company has not issued a detailed statement on the acquisition, but that has not stopped industry observers from trying to work out the motives behind it.
Google has recently bought a number of robotic companies and artificial intelligence is often associated with the development of these machines.
Several news websites asked if Google was planning to combine its robot and AI purchases and build "Skynet" - a reference to the fictional, self-aware artificial intelligence system that features in the Terminator films...