It is good to appreciate history.
Carl is looking through a streaming network for something to watch, and he narrows down his choice to either a historical documentary or a horror movie.
Carl wants to make a final decision about what to watch tonight.
Carl chooses the documentary because the subject sounds interesting, so he's willing to give it a chance.
Carl wants to learn more about history but is afraid it will be too boring, so he chooses to watch the horror movie.
He is glad he picked the documentary because it was very interesting, and he feels as though he learned a lot of fascinating history.
Carl finds the horror movie a little silly and regrets not watching the documentary, as he would have learned something new.