Why do you think you write all these research papers? Is this an exercise in language, in writing, in neat formatting according to APA or MLA recommendations?
Also, why do we study at school? Is there a point in memorizing a whole bunch of information when we can get that info on Google within seconds? Is this some sort of a contest in the ability to listen to boring lectures, or memorizing data and terms, or reading really long books without falling asleep?
I think, the biggest point of education in general, and essay writing in particular, is to learn to THINK. “Think” does now equal “know”. Think does not equal remember. Think does not equal be sure of. There is a special type of thinking that our education is supposed to teach us (but it’s not emphasized very often, unfortunately), it’s called critical thinking.