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"The problem is that city planners have mixed bikes and cars together in ways that offer little certainty about how each should operate, and lots of chances for conflict."
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"As a society, you can flip someone off very easily," Adams said. "But we have no hand signal that says 'I'm sorry.' " (from the Newsweek article.)
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"Many of these problems are with volunteer software in general, not Free Software in particular. […however…] it’s in Free Software that we see volunteer software’s usability problems most often." cultural issues, mostly.