To confirm any story about how the mind has been shaped, you need (among other things) to determine how people today actually think and behave, and to test rival accounts of how these traits function.

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While it stands up to rainfall, spillages and the obligatory throw-the-phone-into-a-bowl-of-water test, the device won't function underwater.

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Which ever department was considering a policy change would carve out a group of 20 to 200 drivers, make them function as a separate business and test the results.

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The heart function can be assessed with an ultrasound of the heart called an echocardiogram or with a nuclear medicine test.

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