Go find a cross-section of things random internet strangers consider "absurdly obvious" and you'll start to understand the need to provide evidence. Fun fact:

Go find a cross-section of things random internet strangers consider "absurdly obvious" and you'll start to understand the need to provide evidence. Fun fact: did you know that different regulations are different, and produce different outcomes? What waves of entrepreneurs and inventors are stifled by the regulation that you can't dump arsenic in rivers?