Show Notes
Surveillance cameras were invented so Nazi scientists could observe rocket launches from a safe distance. They've come a long way since then, and are gathering more data about us than ever before. But in a world where millions happily carry smartphones in our pockets, how do we really feel about being watched?
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First developed by a toy company in the 1890s, slot machines have become one of the most profitable tools of the gambling trade - but many who play them say winning isn't the point. So why can't people pull themselves away? Tim Harford looks under the spinning wheels and flashing lights to see what these devices reveal about the business of addiction.
In 1997, Garry Kasparov, widely regarded as the world's greatest chess player, was defeated by Deep Blue, a computer. But how much did that reveal about the 'brainpower' of machines? Tim Harford explains by delving into the history of algorithms. They've been used by mathematicians and scientists for millennia, but have acquired a new level of power and importance in the digital age.
