anytime i see the phrase 'they're all just theories!" i feel like the scientific method that is the basis for the majority of human invention/discovery is being shitted on

(snatched from http://www.scientificamerican.com/article/just-a-theory-7-misused-science-words/)

"...the word "theory" means something very different in lay language than it does in science: A scientific theory is an explanation of some aspect of the natural world that has been substantiated through repeated experiments or testing. But to the average Jane or Joe, a theory is just an idea that lives in someone's head, rather than an explanation rooted in experiment and testing."