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The 20th-century Austrian-British philosopher Karl Popper believed that any theory that was not ‘falsifiable’ – capable of being tested and proven incorrect – should be dismissed as unscientific. He was particularly critical of Marxist theory, which he believed was constantly being revised by its adherents to account for its failed predictions, and therefore could not possibly be scientific. The falsification principle is a cornerstone of the modern scientific method, but some contemporary scientists, cosmologists and philosophers believe it might need to be revised as they investigate concepts such as string theory and the multiverse, which come up against the limits of what is testable – at least for now.
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Personality
A ‘dumpster archeologist’ reconstructs strangers’ stories via what they’ve discarded
14 minutes
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Evolution
How – and how not – to think about the role randomness plays in evolution
60 minutes
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Meaning and the good life
A Japanese religious community makes an unlikely home in the mountains of Colorado
9 minutes
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Physics
The rhythms of a star system inspire a pianist’s transfixing performance
5 minutes
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Bioethics
Is it ethical to have a second child so that your first might live?
10 minutes
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Art
Watch as Japan’s surplus trees are transformed into forest-tinted crayons
4 minutes
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Meaning and the good life
‘Everydayness is the enemy’ – excerpts from the existentialist novel ‘The Moviegoer’
2 minutes
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Biology
A spectacular, close-up look at the starfish with a ‘hands-on’ approach to parenting
5 minutes
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Technology and the self
A filmmaker finds a tactile beauty in the creation of her prosthetic leg
11 minutes