I know investopedia and I read articles from it. Everipedia is a collection of different topics from all fields of science and technology, business etc. But I haven't looked into it before.

From the discussion I agree that prognosis should be done earlier,before the occurance of a event rather than diagnosis which is done after occurance of the event. But as you said we cannot predict prognosis properly because we will not have any perivoius data to carry out statistical study.

But we have many other statical tools like likehood functions poison theorems to predict the occurance of certain event in advance. We cannot predict exactly but these tools are pretty good and 80% accurate.