Bill Gates explains 'the big milestone' in technology he wants to see in his lifetime

Microsoft, Google, Facebook, and pretty much every other tech company are investing billions into artificial intelligence, making great strides in building smarter software and hardware. But in a Reddit AMA (ask me anything) session, Microsoft cofounder and richest man in the world Bill Gates replied to a question about the advancement he most wants to see in his lifetime by indicating that AI can go further still. "The big milestone is when computers can read and understand information like humans do. There is a lot of work going on in this field - Google, Microsoft, Facebook, academia," writes Gates. "Right now computers don't know how to represent knowledge so they can't read a text book [sic] and pass a test."