How Avoidance Breeds Success

Models 24-30

“It is remarkable how much long-term advantage people like us have gotten by trying to be consistently not stupid, instead of trying to be very intelligent.” — Charlie Munger

Timeless Principles That Endure

Some mental models are cutting-edge discoveries from behavioral economics or cognitive science. Others have endured for decades or even centuries because they capture fundamental truths about how the world works. This chapter presents seven such “oldies but goodies”—timeless principles that remain relevant precisely because they describe recurring patterns in human behavior and complex systems.

These models share a common theme: avoidance of negative outcomes can be as powerful as pursuit of positive ones. Sometimes the best strategy isn’t to do more, but to avoid doing the wrong things. As Charlie Munger wisely observed, consistently avoiding stupidity often beats trying to be brilliant.

Model 24: Murphy’s Law

Model 24

Core Principle: “Anything that can go wrong will go wrong.” Take preventive measures accordingly.

Murphy’s Law isn’t pessimism—it’s realism packaged as preparation. The principle states that if something has the potential to fail, eventually it will. This doesn’t mean everything always fails, but that failure modes should be anticipated and addressed proactively.

The Planning Mindset

Poor planner: “This should work fine.”

Murphy’s Law thinker: “What could go wrong? How likely is it? What’s the impact? How can I prevent or mitigate it?”

This approach is called “pre-mortem” analysis: imagine your project has failed spectacularly, then work backward to identify what went wrong. This surfaces risks you might otherwise miss.

Practical Applications

Travel:

Projects:

Finances:

The Balance

Murphy’s Law isn’t an excuse for paranoia or inaction. It’s a reminder to:

The goal is resilience: when things go wrong (and they will), you’ve already planned for it.

Model 25: Occam’s Razor

Model 25

Core Principle: The simplest explanation with the fewest variables is often the correct one. Strive for simplicity.

Named after 14th-century philosopher William of Ockham, this principle states that when you have multiple explanations for a phenomenon, the one requiring the fewest assumptions is usually right.

Why Simplicity Wins

Complex explanations:

Simple explanations:

Common Applications

Debugging: “My code doesn’t work. Is it a compiler bug, cosmic rays flipping bits, or
 did I make a typo?” (Check for typos first)

Relationship conflicts: “They’re ignoring me. Are they playing mind games, secretly plotting, or
 are they just busy?” (Assume they’re busy first)

Business problems: “Sales are down. Is it market manipulation, competitor espionage, or
 has our product quality declined?” (Check product quality first)

Conspiracy theories fail Occam’s Razor: They require vast numbers of people to maintain perfect secrecy across decades, with no whistleblowers, no evidence, and no mistakes. Simpler explanations (incompetence, randomness, misunderstanding) are usually correct.

How to Apply

When faced with multiple explanations:

  1. List all plausible explanations
  2. Count the assumptions each requires
  3. Start with the simplest explanation (fewest assumptions)
  4. Only move to more complex explanations if simple ones are disproven

Caveat: “Simplest” doesn’t mean “easiest to believe” or “most comfortable.” It means fewest independent assumptions.

Model 26: Hanlon’s Razor

Model 26

Core Principle: Never attribute to malice what can be adequately explained by incompetence or neglect. Assume good intentions.

Related to Occam’s Razor, Hanlon’s Razor suggests that when someone’s actions harm or frustrate you, incompetence or ignorance is a more likely explanation than malicious intent.

Why This Matters for Relationships

Assuming malice when incompetence is more likely:

Assuming incompetence (or at least not assuming malice):

Real-World Examples

Someone cut you off in traffic:

Coworker didn’t respond to your email:

Friend canceled plans last minute:

The Practice

When you feel hurt or frustrated by someone’s actions:

  1. Pause before reacting
  2. Ask: “Is there a non-malicious explanation for this?”
  3. Consider: incompetence, forgetfulness, being overwhelmed, miscommunication, different priorities
  4. Respond based on the most charitable interpretation
  5. Only if pattern persists after clear communication, consider intentionality

This doesn’t mean accepting poor behavior—it means addressing the behavior without assuming malicious intent.

Model 27: The Pareto Principle (80/20 Rule)

Model 27

Core Principle: 20% of actions are responsible for 80% of results. Focus relentlessly on that vital 20%.

Italian economist Vilfredo Pareto noticed that 80% of Italy’s land was owned by 20% of the population. This ratio appears repeatedly across domains:

The exact numbers vary, but the principle holds: a small portion of inputs creates a large portion of outputs.

The Strategic Implication

Most of what you do doesn’t matter much. A small portion of your activities generates most of your results. The key is identifying and focusing on that vital few.

Finding Your 20%

Step 1: Audit

Step 2: Identify

Step 3: Optimize

Common Applications

Business: Focus on top 20% of customers who generate 80% of profit. Give them exceptional service.

Learning: 20% of concepts in a field explain 80% of real-world applications. Master the fundamentals deeply.

Productivity: 20% of tasks create 80% of your career advancement. Protect time for those tasks.

Relationships: 20% of people provide 80% of emotional support and growth. Invest in those relationships.

The Pareto Principle is the antidote to “busyness culture.” It’s not about working harder—it’s about working on what matters.

Model 28: Sturgeon’s Law

Model 28

Core Principle: 90% of everything is of low quality. Be highly selective about what you consume and pursue.

Science fiction writer Theodore Sturgeon coined this law in response to criticism that 90% of science fiction was crud. His response: “90% of everything is crud.” The principle: most of anything is mediocre or worse—focus on finding the exceptional 10%.

The Information Age Problem

In previous eras, scarcity was the problem. Today, abundance is the problem:

Sturgeon’s Law reminds you to be ruthlessly selective. Your constraint isn’t access—it’s attention.

Applying Sturgeon’s Law

Content Consumption:

Opportunities:

Relationships:

Skills:

The Curation Mindset

Sturgeon’s Law shifts your mindset from consumption to curation:

In a world of infinite options, filtering is more valuable than finding.

Model 29: Parkinson’s Law #1 - The Triviality Trap

Model 29

Core Principle: Trivial tasks create a false sense of productivity and become distractions from important work.

British historian Cyril Northcote Parkinson observed that organizations spend disproportionate time on trivial matters because they’re easier to discuss and create a satisfying sense of completion. We covered this earlier as Model 23, but it’s worth emphasizing as a distinct principle.

The Comfort of Trivia

Trivial tasks are psychologically comfortable:

Important work is psychologically uncomfortable:

Breaking the Pattern

Identify your triviality traps:

Replace with important work:

Model 30: Parkinson’s Law #2 - Work Expands

Model 30

Core Principle: Work expands to fill the time allotted for it. Set tighter deadlines.

Parkinson’s second observation: if you give yourself a week to complete a two-hour task, the task will increase in complexity to fill the week. If you give yourself two hours, it will be completed in two hours.

Why This Happens

Psychological factors:

Organizational factors:

Strategic Applications

Personal productivity:

Project management:

Meetings:

Financial:

The Counterintuitive Truth

Tighter constraints often produce better results:

This doesn’t mean unrealistic deadlines cause quality work—it means that generous deadlines often create waste, overcomplexity, and procrastination.

Practice Implementation

This week, try:

  1. Estimate how long a task will take
  2. Cut that estimate by 25-30%
  3. Set a timer and work with full focus
  4. Notice: do you complete it in the shorter time?
  5. Analyze: what would you have done with extra time that didn’t add value?

Most people discover they can work much faster than they think when constraints force focus.

Integration: The Avoidance Strategy

These seven timeless principles share a common theme: success often comes from avoiding mistakes rather than chasing brilliance.

As Charlie Munger observed, consistently avoiding stupidity often beats trying to be brilliant. These models help you identify and avoid common stupidities.

Key Takeaways

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