So is the ability to integrate new ideas into existing mental models, particularly in fast-changing fields like technology.

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Epistemology sounds complicated, in the abstract, but what digital technology has enabled are platforms through which we can build mental models and play with them.

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We had about a year of data from the SEM program that helped us quickly build audience mental models for compelling ad copy and effective visuals.

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"The brain creates these mental models of the world so that you can function, but the consequence is that it makes you less present, so we don't notice what's around us on a regular basis, " Silva said.

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If the U.S. ignores the innovation and alternative delivery models that are advancing mental health care in other parts of the world, the cost will continue to be measured in American lives.

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