[RightWhale]

Why questions assume an intelligence with purpose. How questions are more appropriate to dead physics. Even Heidegger forgot sometimes and asked why questions even though of anybody he would know better than to drop into the idiomatic in a philosophy monograph.

[dinoparty]

I think Heidegger purposefully included the "why". He did this because, in order to understand the world, we need to understand ourselves. Even our most "objective" observations of the world/universe are influenced by the purposes that compel us to observe with our senses and reason with our minds...and we can't talk about purposes without asking the "why" question.