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.
Claims - Says that something is true or is a fact, although you cannot prove it and other people might not believe it.
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.