"We have a perception that we won't get what we want from the other person, so we feel we need to keep asking in order to get it, " says Scott Wetzler, a psychologist and vice chairman of the Department of Psychiatry and Behavioral Sciences at Montefiore Medical Center in New York.

WSJ: Nagging in Marriage Is More Common Than Adultery But Can Also Lead to Divorce

"People keep on asking if we're going to build a phone, " he said.

BBC: Mark Zuckerberg

It's worth asking ourselves why we keep returning to video games despite the lack of evidence to support its link to violence.

CNN: Video games didn't cause Newtown rampage

Asking the civil engineers how much infrastructure spending we need is akin to asking defense contractors how much we should spend to keep America safe.

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Asking whether we want to keep tax breaks for the wealthy is neither constructive nor relevant.

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The question we will all be asking is how to best harness the power of Big Data to keep us healthy and to ensure our health dollars are being spent effectively.

FORBES: Moving Healthcare from the 'Mad Men' Era into the Big Data Age