The Slippery Slope - Deepstash





8 Logical Fallacies that Mess Us All Up | Mark Manson

The Slippery Slope

The Slippery Slope fallacy is a mistaken belief that one relatively mild unaddressed problem or allowance will automatically lead to other negative consequences.

The mind races on to the next negative consequence like a downward spiral, creating fear and anxiety.




Convince Them With Confidence
  • Speak confidently, be concise, and try not to repeat yourself. 
  • Give the appearance that you truly know what’s right from the beginning, even if you don’t have all of the facts. 
  • Facts that can support your stance is helpful, but being convincing matters more.
Avoid Common Argument Fallacies

Winning an argument often comes down to who can go the longest without contradicting themselves and keeping sound logic, not direct persuasion of the other party.

Anecdotal Fallacy

Using a single personal experience as the foundation of your argument or your big piece of evidence. 

For example, your phone may have broken right after you bought it, but you can’t use that to argue that those phones are not worth the purchase for others.


A fallacy is the use of faulty reasoning in an argument.

There are formal and informal fallacies:

  • A formal fallacy describes a flaw in the construction of a deductive argument.
  • An informal fallacy describes an error in reasoning.

Appeal to privacy

In this fallacy, someone behaves in a way that negatively affects others but then gets upset when others criticize their behavior. They will reply with a "mind your own business."
For instance, someone who doesn't see a reason to bathe, but then boards a full 10-hour flight.

Sunk cost fallacy

It happens when someone continues in a course of action, even if evidence shows that it's a mistake.

Common phrase: "We've always done it this way, so we'll keep doing it this way." "I've already invested so much..."

Straw man arguments

A straw man argument is a misrepresentation of an opinion or viewpoint, designed to be as easy as possible to contradict.

The only purpose is for it to be easy to expose. It’s not an argument you happen to find inconvenient or challenging. It’s one that is logically flawed.

Hollow man arguments

This is a weak case (similar to the Straw man arguments) attributed to a non-existent group: Someone will fabricate a viewpoint that is easy to contradict, then claim it was made by a group they disagree with. Arguing against an opponent which doesn’t exist is a pretty easy way to win any debate.

People who use hollow man arguments will often use vague, non-specific language without explicitly giving any sources or stating who their opponent is.

Iron man argument

It is designed to be resistant to attacks by a defier.There arguments are difficult to avoid because they have a lot of overlap with legitimate debate techniques.

A person using an iron man argument will most likely make their own viewpoint so vague that nothing anyone says about it can weaken it. They’ll use jargon and imprecise terms. This means they can claim anyone who disagrees didn’t understand them, or they’ll rephrase their argument multiple times.