Professor Stephen Hawking, one of the world's most [renewed / renowned] scientists, has warned that robots and machines with artificial intelligence could one day [meant / mean] the end of [them / us] all. Professor Hawking recently told the BBC in [the / an] interview that: "The development of full artificial intelligence (AI) could [spelling / spell] the end of the human race." The famous cosmologist made his warning [in / on] response to a question about an update to the app [he / it] uses to allow him to communicate. Hawking [suffers / experiences] from motor neuron disease (also known as ALS) and needs a [specially / special] voice synthesizer to talk. The update will be able to predict words he might want to use based [on / in] his previous communication. Hawking said that AI has given many [beneficial / benefits] to many people. He said it is still [in / on] its early stages of development, but when it becomes [more / much] sophisticated, it could prove a [threat / threaten] to our existence. He said: "It would take off on its own, and re-design itself at an [ever / even] increasing rate. Humans, who are limited by [slow / slowly] biological evolution, couldn't compete, and would be [super-speeded / superseded] ." This is not the first time he has issued [like / such] a warning. He gave a more chilling warning in April 2014, saying: "One can imagine such technology [smarting / outsmarting] financial markets, out-inventing human researchers, out-manipulating human leaders, and developing weapons we cannot [oddly / even] understand."