A Wiki Wolfram Alpha

The Encyclopedia of everything computable which W|A is, would gain much momentum if a wiki model could be established for it. There is so much that needs to be calculated in this world, total cost of ownership of a car in Italy anyone?

For this we would need an Excel like interface. Excel is the most widespread tool for calculating stuff. If you want to crowdsource algorithm writing, you need to enable the skilled spreadsheet workforce to use your tool.

We would also need to establish tests to prove the algorithm. Automated regression tests to track erroneous modifications and exploration of the solution space. A qualitative peer review is indispensable, though.