If there is one concept in psychology that I learned this semester that I think I will remember and use for a long time, if not the rest of my life, it's the correlation vs. causation fallacy. I notice people falling victim to this fallacy all the time. I don't always call them out, but I am thinking in my head, "No, that's not necessarily true." I even got to use it in my public speaking course. I had to debate on the affirmative side of legalizing marijuana. I used the correlation vs. causation fallacy to debunk the gateway drug argument (people who are open to smoking marijuana are already open to trying new things; it doesn't necessarily mean they do harder drugs because they smoke marijuana, it's just a correlation, not the causation). I think it can be very helpful in the future, especially when analyzing different things in our society. It can help us resolve the roots of our problems. We might be able to throw out possible causes of our problems if we keep correlation vs. causation in mind. What do you guys think? Is correlation vs. causation helpful in society? What are some examples that you have seen since learning about it?