From NNT:
My biggest problem with the educational system lies precisely in that it forces students to squeeze explanations out of subject matters and shames them for withholding judgement, for uttering the “I don’t know”. Why did the Cold War end? Why did the Persians lose the battle of Salamis? Why did Hannibal get his behind kicked? Why did Casanova bounce back from hardship? …
I am not saying causes do not exist; do not use this argument to avoid learning from history. All I am saying is it is not so simple; be suspicious of the “because” and handle it with care, particularly in situations where you suspect “silent evidence”.