Stephen Hawking said in 2014 that artificial intelligence could mean the end of humanity. The theoretical physicist died in 2018 from amyotrophic lateral sclerosis (ALS) Hawking was enthusiastic about the improvements made to the technology he used to speak and write.

The only thing that didn't change was the robotic tone of his voice, but Hawking insisted during that talk that he didn't want a more natural voice. "It became my brand, and I wouldn't have changed it for one with a morenatural tone and a British accent," he concluded.