Mathematical modelling: A dark art comes to light

We've all become intimately aware of modelling since COVID-19 entered our lives, but modelling is used in health, ecology and behavioural psychology, to name but a few. Credit: Cosmos; images Getty Images.

When there’s no time to waste and the stakes are high, a computer model can be just what you need. But before the pandemic, few people outside science might have realised just how useful they were.

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