a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.
"Darwin's theory of evolution"
synonyms: hypothesis, thesis, conjecture, supposition, speculation, postulation, postulate, proposition, premise, surmise, assumption, presupposition;
More a set of principles on which the practice of an activity is based.
"a theory of education"
an idea used to account for a situation or justify a course of action.
"My theory is that Woody is a left leaning internet troll".
It doesn't matter what the actual definition of theory is. In Woody's mind scientific theory is fact. In fact, it's still theory, albeit one that's generally accepted as conventional wisdom by others in lieu of hard fact. In fact many scientific theories have been disproven so even though there is a strong case for it you still have to approach it with skepticism
Hey I'm all for green energy. If I had the cash I'd put a windmill in my gigantic wind tunnel of a backyard, but I don't.
I drove through Iowa about a year ago on route to California and drove through about 100 miles of straight up nothing but wind farms. Windmills as far as the eye could see in every direction. And yet, they only make up 30% of the energy for 3.1 million people.