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In the seminal 1993 paper, however, Vinge, who died in 2024, argued that “we are on the edge of change comparable to the rise of human life on Earth. The precise cause of this change is the imminent creation by technology of entities with greater than human intelligence.”

Abroad, conflicts rage – most notably, the years' long face-off between Israel and Iran that has exploded into a deadly and direct phase this week, and a belligerent Russia fighting war on the edge of our continent.

But people have gathered nearly every day at a roundabout on the edge of an Israeli military zone, through which they have to pass to reach the aid site.

Ms Tourgon added: "It was very quick - he found himself in an awkward position with his left foot in a void over the cliff and his right knee on the edge of the cliff."

Marsak’s dedication has paid off: “Los Angeles Before the Freeways” is an engrossing collection of black-and-white images of a city in which old adobe structures sit between Italianate office buildings or peek out from behind old signs, elegant homes teeter on the edge of steep hillsides, and routes long used by locals would soon be demolished to make room for freeways.