Justices Scalia and Thomas in many of the most important cases, wanted to overrule past decisions outright, while Chief Justice Roberts, Justice Alito and sometimes Justice Kennedy favored a more narrow approach that, well, depending on your point of view, either gutted previous decisions without saying so or represented a more limited approach.

NPR: The Supreme Court Shifts Direction

Just as every talent has a flip side, one downside of such life-enhancing filtering is what Eli Pariser dubbed a filter bubble in which we narrow our interests and thus sometimes miss the serendipitous connections that can pull unexpected insights and friendships into our lives.

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And so, very frequently throughout the route, you had protesters - sometimes even just one or two lunging into the narrow street.

NPR: In Paris, Olympic Torch Inflames Protesters

The hallways are so narrow in sections of the old CBS broadcast center sometimes you even touch each other.

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Its physical properties (its narrow bandgap, in physics parlance) mean that it sometimes releases electrons even though no light has fallen on it, resulting in a noisy image.

ECONOMIST: Camera-phones