Is Yuval Noah Harari right? The science writer thinks that “alien intelligence” could take over from humans. But others think he is being too negative.
Aliens will destroy us warns new book
Scholar: Israeli intellectual Yuval Noah Harari (above) believes that now is the most exciting point in 70,000 years of human history. Glossary
Glum - Sad, unhappy or downbeat.
Philosophy - The study of key questions and knowledge about nature, reality and existence.
Economics - The study of wealth and how it is produced and consumed.
Species - A set of animals or plants with similar features. Members of the same species can breed with each other.
Dictators - Rulers with total power over a country.
Climate change - Long-term shifts in temperatures and weather patterns. Human action is a major cause of climate change.
AI - A computer programme that has been designed to think.
Predict - Say what you think is about to happen.