Comprehensive Guide to the Ad Hominem Fallacy

Definition: An ad hominem attack is a logical fallacy that occurs when an individual attempts to refute an argument by attacking the character of the person making the argument, rather than addressing the logic or the premise of the argument itself.
Etymology and Concept: The term is used to describe a shift away from the substance of a debate to a personal critique.
General Purpose: Most commonly, ad hominem attacks are employed as a strategy to avoid the argument altogether.
Soundness: While they can be entertaining or easy to employ, they are not considered sound logical moves. They are described as "dodgy" and represent a failure to grapple with the actual substance of an issue.

Donald Trump and Marco Rubio: * Trump alleged that Rubio has a "pathological disease." * Wait, corrections to the specific terminology: Trump originally said Rubio had a "pathological temper" and subsequently defined "pathological" as a "disease."
Attacks on Personal Habits: * Critiques focusing on a person's physical behavior during a task, such as Donald Trump's commentary on someone's eating habits during a news conference, describing the manner of eating as "disgusting."
Dismissal of Activism: * Dismissing a protester's concerns by claiming they are being paid by George Soros rather than evaluating their specific grievances.
Labeling Supporters: * Arguing that anyone who supports certain policies, such as Donald Trump's immigration policy, is automatically a racist. This attacks the character of the supporter instead of the policy's merits or flaws.
Digital Platforms: Ad hominem attacks are particularly prevalent in the comments sections of online platforms.

Contextual Validity: Ad hominem attacks are not always fallacious. Sometimes the character, background, or credentials of the person making the argument are directly relevant to the validity of the argument.
Arguments Based on Authority: If an argument relies solely on the speaker's authority, questioning that authority is a valid counter-point.
The Hypothetical Case of Daniel: * Scenario: A person named Daniel claims that eating seven pounds of beef stroganoff a day is totally healthy, citing medical school as his source of information. * Counter-Argument: It is perfectly valid to point out that Daniel never actually attended medical school and is, in fact, an electrician. In this instance, the attack on his credentials directly undermines the basis of his argument (his supposed medical authority).

Ad Hominem Tu Quoque (Phonetic: "to kwokwei"): * Concept: This involves accusing someone of not practicing what they preach (an appeal to hypocrisy). * Example: A carnivore argues that eating meat is bad for the planet. The opponent points out that the carnivore "can't resist a savory bowl of chicken stroganoff." * Logical Reality: The fact that the speaker is a hypocrite does not actually invalidate the scientific or environmental argument they are making.
Ad Hominem Circumstantial: * Concept: This involves trying to invalidate an argument by claiming the arguer is acting out of personal self-interest. * Example: If an individual presents data proving that tax cuts are beneficial for the economy, it is a fallacy to dismiss that data simply because the individual making the argument would personally benefit from those tax cuts.
Poisoning the Well: * Concept: This occurs when someone is primed to distrust another person's argument in advance of the argument being made. * Example: Donald Trump labeling various press outlets as "enemies of the American people." * Timing: This label was applied specifically the day before news broke regarding communications between members of his administration and Russia, effectively priming the audience to dismiss the upcoming reporting.

The guide concludes with a self-referential ad hominem: telling those who disagree with the lesson to "hop on the next train of loser town" because "that's obviously where you belong." This exemplifies the fallacy by attacking the opponent's status/location rather than defending the logic of the guide.