The Economist does it again, an very thought-provoking article. Did you know that until 1993 no restrooms were assigned to female senators in Capitol Hill? They

The Economist does it again, an very thought-provoking article. Did you know that until 1993 no restrooms were assigned to female senators in Capitol Hill? They had to use the same restrooms as visiting tourists. Or that women take 3 minutes to go in and out but men take 83.6 seconds? I've always wondered how the number of toilet stalls are determined for public spaces a s a function of number of people expected to use it.