This diagram (albeit lacking citations for the empirical data) shows how salaries of women over time have generally increased to the point of almost becoming equal to salaries of men, but then with the advent of the Internet and the popularity of LOLCats, cats have now become the primary income earner in many households.
And as the person who created the diagram concluded, this will mark the end of humanity as we know it.
Source:
http://www.smbc-comics.com/index.php?db=comics&id=2407
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