Jonah Lehrer explains why distractions can be good for us, as long as we're letting the right ones in:

The association between creativity and open-mindedness has long been recognized, and what’s more open-minded than distractability? People with low latent inhibition are literally unable to close their mind, to keep the spotlight of attention from drifting off to the far corners of the stage. The end result is that they can’t help but consider the unexpected.

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