I did. Your point?
Oh? Universities have a different opinion:
Learn about fallacies. Fallacies are arguments that suffer from one or more common but avoidable defects: equivocation, circularity, vagueness, etc.
online.duke.edu
Best online courses in Logical Fallacies from Duke, University of Washington, Shri Lal Bahadur Shastri Rashtriya Sanskrit Vidyapeeth, Universidad Autónoma de Occidente and other top universities around the world
www.classcentral.com
Now that you have studied the necessary structure of a good argument and can represent its structure visually, you might think it would be simple to pick out bad arguments. However, identifying bad arguments can be very tricky in practice. Very often, what at first appears to be ironclad reasoning turns out to contain one or more subtle errors.
Fortunately, there are many easily identifiable fallacies (mistakes of reasoning) that you can learn to recognize by their structure or content. In this unit, you will learn about the nature of fallacies, look at a couple of different ways of classifying them, and spend some time dealing with the most common fallacies in detail.
learn.saylor.org
I'm in London often enough to know what happens there. You're never here.
I just disproved that little gem from you in this post.