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And how would you find out if that question has been answered before? That would only work if there was single unified centralised question site. And then we ar

by anc84 7y ago

And how would you find out if that question has been answered before? That would only work if there was single unified centralised question site. And then we are pretty much back at Google's single search field.

Kaiyou 7y ago
You don't need to. It's not a problem to ask and answer the same question repeatedly. School never had a problem with that.
- candu 7y ago
  School also never had navigability of past questions / answers as its explicit objective.
  - Kaiyou 7y ago
    Neither would the replacement for search engines.
kpbird 7y ago
question and answer site is available - http://quora.com/ http://quora.com/ but it has the same problem, index and centralized information controlled by one company.