I HAVE a recurring dream that I’m about to sit a maths exam. I wake up in a bit of a panic, cursing myself for not doing enough revision - then I realise, with immense relief, that it was just a dream ...

To some, METR’s “time horizon plot” indicates that AI utopia—or apocalypse—is close at hand. The truth is more complicated.

Wind is the movement of air from an area of high pressure to an area of low pressure. In fact, wind exists because the sun unevenly heats the surface of the Earth. As hot air rises, cooler air moves ...