Critical Thinking & Argument: Logic, Fallacies, Persuasion & Debate

Critical Thinking: The Foundation of Strong Arguments

Critical thinking is the ability to analyze information objectively, evaluate arguments logically, and form well-reasoned judgments. Unlike passive reading, it requires questioning assumptions, detecting biases, and distinguishing facts from opinions.

Key Components of Critical Thinking

1. Clarity: Understanding the exact meaning of terms and arguments.
2. Precision: Avoiding vague language and ensuring definitions are exact.
3. Relevance: Focusing on information directly related to the argument.
4. Depth: Examining underlying assumptions and implications.
5. Breadth: Considering multiple perspectives before concluding.
6. Logic: Ensuring arguments follow sound reasoning.

How to Apply Critical Thinking

• Ask "Why?" and "How?" – Challenge the reasoning behind claims.
• Look for evidence – Does the argument rely on facts, opinions, or emotions?
• Identify biases – Is the source credible? Are there hidden agendas?
• Compare viewpoints – What would someone with an opposing view say?

Worked Example: Analyzing a Daraz Advertisement Claim: "Daraz offers the lowest prices in Nepal—guaranteed!" Critical Questions:

• Evidence? Are prices compared to other platforms (e.g., Sano, Hamrobazaar)?
• Assumptions? Does "lowest" account for shipping costs, discounts, or hidden fees?
• Bias? Is Daraz a trusted source, or is this a marketing exaggeration? Conclusion: The claim lacks comparative data and may be emotionally persuasive rather than logically sound.

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Arguments: Structure and Types

An argument is a claim supported by reasoning and evidence. Strong arguments are logical, evidence-based, and structured.

Parts of a Strong Argument

Types of Arguments

1. Deductive – General → Specific (e.g., "All Nepali banks charge interest. NMB charges interest. Therefore, NMB is a Nepali bank.")
2. Inductive – Specific → General (e.g., "Every time I use Khalti, the transaction is secure. Thus, Khalti is likely secure for everyone.")
3. Abductive – Best explanation (e.g., "The eSewa app crashed during peak hours. The most likely cause is server overload.")

Worked Example: NEPSE Stock Market Argument Claim: "Investing in NEPSE is risky due to market volatility."

• Reasoning: NEPSE’s index fluctuates daily (e.g., -5% in 2022, +12% in 2023).
• Evidence: Historical data from NEPSE’s official site.
• Counterargument: "But long-term trends show growth."
• Rebuttal: "While long-term gains exist, short-term risks deter small investors."

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Logical Fallacies: Common Mistakes in Reasoning

A fallacy is an error in reasoning that weakens an argument. Recognizing them helps you spot weak arguments and avoid them in your own writing.

Major Types of Fallacies

Worked Example: Spotting Fallacies in a Bank Loan Ad Ad Claim: "Take a loan from Global IME—our customers are happy!"

• Fallacy: Bandwagon + Appeal to Popularity (happiness ≠ financial suitability).
• Better Approach: "Global IME offers competitive interest rates (8% p.a.) with flexible repayment terms, backed by a 95% customer satisfaction rating in 2023."

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Persuasion Techniques: How to Influence Audiences

Persuasion uses ethos (credibility), pathos (emotion), and logos (logic) to influence decisions. Businesses and politicians rely on these techniques.

Ethical vs. Manipulative Persuasion

Worked Example: Khalti’s "Refer & Earn" Campaign

• Ethical: "Refer 5 friends and get Rs. 100—helping you and them save on transactions."
• Manipulative: "Refer now or lose your bonus forever!" (creates artificial urgency).

Persuasive Strategies in Business

1. Framing – Presenting information to highlight benefits.
   • Bad: "This loan has a 12% interest rate."
   • Good: "Enjoy low monthly payments with a 12% APR—just 0.3% per month!"
2. Anchoring – Setting a high initial price to make discounts seem better.
   • Example: Daraz originally lists a phone at Rs. 50,000, then offers it at Rs. 35,000.
3. Scarcity – Limiting availability to create urgency.
   • Example: "Only 3 units left at this price!"

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Debate and Discussion Skills

Debates require structured reasoning, rebuttals, and audience awareness. Common formats include:

• Panel Debates (multiple speakers)
• Oxford-style Debates (two teams, clear motions)
• Fishbowl Discussions (rotating speakers)

Steps to Win a Debate

1. Research: Know your topic inside out.
2. Structure:
   • Opening Statement: State your position clearly.
   • Arguments: Present 2–3 strong points with evidence.
   • Rebuttals: Counter opponent’s arguments.
   • Closing: Summarize key points.
3. Body Language: Maintain eye contact, speak confidently.
4. Audience Engagement: Ask rhetorical questions to involve listeners.

Worked Example: Debate Motion Motion: "Social media harms Nepali youth more than it helps."

• Affirmative Argument:
  • Point 1: "Excessive screen time reduces productivity (NTC reports 30% drop in student focus)."
  • Point 2: "Cyberbullying cases rose 40% in 2023 (Kantipur survey)."
• Rebuttal to Opponent:
  • "Opponent claims social media connects families, but 60% of rural youth still lack access (World Bank data)."

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In the Real World

Critical thinking and argumentation are everywhere in business, technology, and daily life. Here’s how companies and apps use these principles:

1. eSewa’s Security Claims

   • Idea Used: Appeal to Authority + Evidence
   • How: eSewa partners with Nabil Bank and claims "Nepal Rastra Bank-approved security." They back this with transaction data (e.g., "99.9% of payments processed safely in 2023") to build trust.

2. Pathao’s Driver Ratings System

   • Idea Used: Hasty Generalization Fallacy vs. Data-Driven Argument
   • How: Pathao avoids the "all drivers are bad" fallacy by using real-time ratings (e.g., "90% of rides in Thapathali are 4.5+ stars"). This shifts from emotional claims to logical evidence.

3. NTC’s Tariff Hikes Debate

   • Idea Used: Slippery Slope Fallacy (Opposition) vs. Cost-Benefit Analysis (NTC)
   • How:
   • Manipulative Tactic: "If we don’t hike tariffs, power shortages will worsen!" (assumes no alternatives).
   • Critical Response: "But NTC’s 2022 profit was Rs. 12 billion—why can’t they invest instead?" (uses financial data to counter fear-mongering).

4. Daraz’s "Lightning Deals"

   • Idea Used: Scarcity + False Urgency
   • How: "Only 50 units left at this price!" creates artificial demand, but a critical thinker asks:
     • Is the stock really limited, or is this a marketing trick?
     • Would the price drop naturally later anyway?

5. Nepal Investment Bank’s Loan Ads

   • Idea Used: Framing + Emotional Appeal
   • Ad: "Turn your dreams into reality—lowest EMI starting at Rs. 2,500/month!"
   • Critical Breakdown:
     • Ethical: Highlights affordability (logic).
     • Manipulative: Omits total interest paid (e.g., Rs. 500,000 over 5 years at 15% APR).

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Exam Tip: How to Score Full Marks

This unit is tested through:

1. Short Answer Questions (SAQs) – Define terms like fallacy, ethos, or deductive reasoning.
2. Case Studies – Analyze ads, news articles, or debates for arguments and fallacies.
3. Essay Questions – Write a structured argument (claim + reasoning + evidence + rebuttals).
4. Debate Simulations – Prepare opening statements, rebuttals, and closing arguments.

Marks Distribution (Typical PU Pattern)

Common Mistakes to Avoid

• Vague answers: Instead of "It’s a bad argument," say "It uses a false cause fallacy by assuming X caused Y without evidence."
• Ignoring counterarguments: Always address opposing views to show depth.
• Overusing emotions: While pathos is useful, logos (logic) carries more weight in business contexts.
• Plagiarizing examples: Use Nepali companies (e.g., NMB, Global IME) or local issues (e.g., traffic, tariffs) to stand out.

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Sample Exam Answer (7-Mark Question)

Question: "Analyze the following argument for logical fallacies and suggest improvements." Argument: "You can’t trust online banking. My friend lost Rs. 50,000 in a scam, so it’s dangerous for everyone."

Answer: This argument commits two fallacies:

1. Hasty Generalization – The conclusion ("dangerous for everyone") is drawn from a single anecdote (one friend’s experience).
2. Ad Hominem (by association) – The risk is tied to a personal story rather than systemic evidence.

Improved Version: "While online banking carries risks (e.g., phishing scams), most Nepali banks report 98% secure transactions (Nabil Bank 2023). However, users should enable two-factor authentication and avoid sharing OTPs to mitigate fraud. For example, Global IME’s app uses Nepal Rastra Bank-approved encryption, reducing but not eliminating risks."

Why This Works:

• Replaces emotional appeal with data.
• Acknowledges risks but offers solutions.
• Uses credible sources (bank reports).