Star

New Feature! Download infographics with key insights from bestselling non-fiction books

Download Now
Book Summary

Killing Sacred Cows

By Garrett B. Gunderson

15 min
Audio available

Brief Summary

Killing Sacred Cows argues that many financial rules are repeated so often they become unquestioned—even when they don’t create freedom.

Gunderson’s central message is that wealth is not primarily built by extreme frugality, blind retirement accumulation, or rigid debt avoidance. Wealth is built by creating value for others, investing in your capacity to produce, and structuring your finances around control and cash flow.

He encourages you to replace scarcity thinking with a creative mindset: instead of fighting over limited resources, focus on producing solutions people care about and building systems that generate ongoing income.

For retirement, he argues the goal shouldn’t just be a large account balance—it should be sustainable cash flow that funds your life without fear. For debt, he argues the question isn’t “is debt bad?” but “does this debt increase assets and future income or drain them?” For investing, he argues that education and understanding reduce risk more effectively than simply avoiding opportunity.

Ultimately, Gunderson wants you to stop worshiping financial slogans and start building a financial strategy that buys you the thing money is supposed to buy: freedom.

About the Author

Garrett B. Gunderson is a financial author and entrepreneur known for challenging conventional personal finance advice. His work emphasizes wealth creation through value generation, building cash-flowing assets, improving financial education, and making decisions based on control and freedom rather than fear-driven scarcity.

Killing Sacred Cows Book Summary Preview

Killing Sacred Cows is built around a simple idea: lots of people follow financial advice that sounds responsible, gets repeated everywhere, and feels morally “right”—but still doesn’t produce real freedom.

Garrett B. Gunderson argues that certain financial beliefs become unquestionable. People treat them like universal laws: max out retirement accounts, avoid debt at all costs, save relentlessly, and assume the future will take care of itself if you follow the standard plan. He calls these beliefs “sacred cows,” and his goal is to challenge them—not to be provocative for fun, but to show how they can quietly limit your choices, your wealth, and your quality of life.

Rather than teaching one rigid system, the book tries to change how you evaluate financial decisions. Gunderson pushes you to stop asking, “Is this what people say I should do?” and start asking, “Does this increase my freedom, cash flow, control, and ability to create value?”

At its core, the book argues that wealth isn’t primarily created by restricting your life and hoarding money. It’s created by producing value for others, building income streams, and structuring your finances so your money supports your life—not the other way around.

The Big Shift: Moving From Scarcity to Creation

Gunderson begins by challenging a scarcity-based view of money.

Many people unconsciously treat wealth as limited—like there’s only so much to go around. When you believe that, money becomes something you protect obsessively. Every purchase feels dangerous, every investment feels like a gamble, and other people’s success can feel like a threat.

He argues that this mindset is the root of many self-defeating financial habits because it trains you to play defense forever.

The alternative he promotes is a creation-based mindset:

  • Wealth expands when people solve problems.

  • Value can be created endlessly because human needs and preferences keep evolving.

  • You increase your wealth by creating value that others willingly exchange money for.

This shift matters because it turns money from a scarce resource you chase into a tool you use to create a better life.

How Scarcity Thinking Warps Financial Behavior

Gunderson claims scarcity thinking produces behaviors that look “disciplined,” but often reduce both wealth and happiness.

Excessive frugality that lowers your earning power

There’s a difference between mindful spending and refusing to invest in things that improve your ability to produce.

If you constantly avoid spending—even on tools, education, support, or systems—you may protect your bank balance while shrinking your capacity to earn.

Examples of capacity-boosting spending include:

  • upgrading equipment that improves output or reliability

  • paying for coaching or training that increases income potential

  • outsourcing low-value tasks so you can focus on higher-value work

  • investing in systems that reduce time waste and mistakes

Gunderson’s point is that some expenses aren’t “costs.” They’re multipliers.

Missing opportunities because you’re obsessed with safety

A scarcity mindset can make you so cautious that you stop seeing opportunities.

When you’re focused on preserving what you have, you become risk-averse by default. You say no to collaborations, no to investments in growth, no to new ideas—because your brain is trained to protect the present rather than create the future.

Gunderson argues that many breakthroughs come from thinking creatively ...

Join over 100,000 readers!

Upgrade to Sumizeit Premium

Sign up for 3 free book summaries and upgrade for unlimited access


Get Started for Free

Save time with unlimited access to text, audio, and video summaries of the world's best-selling books.

Upgrade Now

book summary - Killing Sacred Cows by Garrett B. Gunderson

Killing Sacred Cows

Book Summary
15 min

More Like This

Tony Robbins
Stephen P. Williams
Nassim Nicholas Taleb

Learn Something New Every Day with Sumizeit

Try Sumizeit to get the key ideas from thousands of bestselling nonfiction titles. Listen, read, or watch in just 15 minutes.

High-Quality Titles

Highest quality content

Our book summaries are crafted to be unbiased, concise, and comprehensive, giving you the most valuable insights in the shortest amount of time.

New book summaries added constantly

New content added constantly

We add new content each week, including New York Times bestsellers.

Learn on the go while commuting, exercising, etc

Learn on the go

Learn anytime, anywhere - read, listen or watch summaries on IOS, tablet, laptop, and Kindle!

You can cancel your subscription anytime

Cancel anytime

Changed your mind? No problem. Cancel your subscription anytime.

Collect awards while learning

Collect Achievements

Learning just got more rewarding - track your progress and earn prizes using our mobile app.

Sumizeit provides other features as well

And much more!

Improve your retention with quizzes. Enjoy PDF summaries, infographics, offline access with our app and more.

Our users love Sumizeit

Join thousands of readers who learn faster than they ever thought possible

Trustpilot reviews
4.6
out of 5
5k+ ratings
Quality

People ❤️ SumizeIt

See what our readers are saying

Olga Z.

I love this app! As a busy executive, I don't have time to read entire books, but I still want to stay informed. This app provides me with concise summaries of the latest bestsellers, so I can stay up-to-date on the latest trends and ideas without sacrificing my precious time.

Chen L.

Very good development in last months. Content updates on a regular basis and UI is getting better and better.

Erica A.

Great product. Have used them for a long time. One of my favorite things about them is that they are able to summarize a whole book into just 10 minutes.

William H.

This app has been a lifesaver for my studies. Instead of struggling to finish textbooks, I can quickly get the key points from each chapter. It's helped me improve my grades and understand the material much better.