Sometimes the most impressive tools solve a problem you never knew you had. In the case of QueryTree, a new data analysis tool, that problem is something most people never question: spreadsheets.
For all the shiny-shiny copy-and-paste-click-and-drag-ness in new journalism tools, most data digging comes back to at least some simple spreadsheet work, and that represents a significant hurdle for many journalists used to working with simpler tools.
While interface design has undergone generations of improvement on the web, spreadsheet software interfaces have remained largely unchanged for decades.
So why did no one think to do this before?