This is the sort of thing I dreamed of as a first year science student.
And like much of what I learned in first year science, I dont actually use it all that much in real life, but its nice to have.
At the moment, what I like most is that it actually makes me think about the questions Im asking, a valuable service in any situation.
Theres also a strong political argument for supporting this -- with traditional search engines like Google co-opted by advertisers & aggregators, the world needs a query tool with intellectual integrity, and this looks like our best bet for that.
Hedgehog.ca about WolframAlpha Classic, v1.6.0