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Technology

Could the world's mightiest computers be too complicated to use?

China, Japan and the US are racing to build the first exascale computer – but devising programmes clever enough to run on them is a different story

Features

Philip Zimbardo

Humans

Inside the prison experiment that claimed to show the roots of evil

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Humans

Traces of mystery ancient humans found lurking in our genomes

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Physics

There's a glitch at the edge of the universe that could remake physics

Features

Find out how outrageously weird octopuses are – take our quiz

Life

Find out how outrageously weird octopuses are – take our quiz

Features

Iyad Rahwan

Technology

Why the quest for ethical AI is doomed to failure

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Life

The colour blind octopus that mastered the art of disguise

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Health

Nobody can agree about antidepressants. Here’s what you need to know

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Life

Hacking nature's coolest inventions to create the perfect metal

Features

Priya Singh

Life

The rare-leopard spotter who accidentally caught gunmen in her traps

Priya Singh spent months in the wilds of north-east India tracking elusive clouded leopards and marbled cats, but caught more than she bargained for in her camera traps

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Humans

We thought the Incas couldn't write. These knots change everything

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Technology

Mind-reading devices can now access your thoughts and dreams using AI

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Life

The mystery of the dinosaur with crocodile jaws, bear claws and a sail

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Mind

Why your brain is hardwired to be bad at economics – and how to fix it

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