5. AI experts are optimistic. They hope that, one day, intelligent machines will be all around us. Perhaps everyone will have a Hal their own personal assistant. If you’ve got a question, Hal will know the answer. If you want to go on a trip, Hal will be able to make all the arrangements. He’ll never get tired, he’ll never be ill and he’ll never get angry. Think about it. Would you like your own ‘Hal’?