I mean that makes sense. At one point We could see blood and various organs and what not inside the human body, but still believed in humours. Some things just

I mean that makes sense. At one point We could see blood and various organs and what not inside the human body, but still believed in humours. Some things just work without worrying about how they work, and the scientific process is very important for these kinds of "discoveries" regardless of how obvious they look to us.