It may not last, but the breaching of the Gaza-Egypt border for voluntary movement and trade is a wonderful thing:

Official reaction to the day’s events ranged from dismay to embarrassment to outright anger.

…

For ordinary Gazans, it was a day of joy and plenty.

…

“Freedom is good. We need no border after today,” said Mohammed Abu Ghazal, a 29-year-old out-of-work Gazan.

Of course the Gaza border is atypical in many ways and at least initially this breach will satisfy pent up demand for goods and travel rather than provide opportunity for labor, but the release of this demand paints the ongoing massive cost of borders in vivid fashion (if there were no cost the opening of a border would result in no border crossings).