Spreadsheets used to be actual sheets of paper. Sometimes, a bunch of sheets of paper taped together. Then, in the late ’70s, a bored student invented the electronic spreadsheet. It transformed industries. But its effects ran deeper than that. As one journalist wrote more than 30 years ago, “The spreadsheet is a tool, and it is also a world view — reality by the numbers.” For more: http://n.pr/1DVdMIv