Before I started reading Roman Krznaric’s The Good Ancestor, I found myself stuck on a question I couldn’t shake: why do we, myself included, make so many spur-of-the-moment decisions without thinking about how they’ll affect the future? That curiosity is what made me pick up this book, and it turned out to be an insightful guide for anyone looking to shift their focus from short-term wins to long-term impact.

Krznaric introduces six practical ideas to help us embrace long-term thinking. He connects these big-picture concepts to everyday actions, showing that we all have a role to play in creating a better future. At the same time, he’s upfront about the limits of his perspective. When he talks about “we,” he mostly refers to those living comfortably in the Global North with wealthier, industrialized nations. While this honesty adds depth to his arguments, it also highlights that some viewpoints are missing.

One thing to note about this book is the structure. Krznaric organizes his ideas into lists, like six strategies here or five principles there. It’s helpful if you like things laid out clearly, but it can also feel overwhelming at times. I found myself needing to pause often so I could digest the ideas as well as connect them back to the broader context. It felt a bit like carrying a bag full of tools: each one useful, but a little heavy if you try to use them all at once.

For me, The Good Ancestor wasn’t a light read, but it was deeply thought-provoking. It stayed with me long after I finished, pushing me to think harder about the impact of my daily choices. If you’re ready to explore what it means to leave behind a meaningful legacy, this book is a great starting point.

Summary

The Age of Short-Term Thinking, A Crisis in the Making

In today’s world, our obsession with short-term goals has become a dangerous habit, affecting much more than public policy. It has led us to a tipping point where the looming threat of ‘existential risk’ is hard to ignore. These risks, often rare but incredibly catastrophic, are increasingly linked to advancements in technology.

Skills for a Future-Focused Mindset

Becoming a “good ancestor” involves cultivating essential cognitive skills rooted in specific attitudes, beliefs, and ideals. These fall into three key areas:

1. Imagining the Future: This requires embracing Deep-Time Humility, which acknowledges humanity’s place in the vast timeline of existence, and pursuing a Transcendent Goal that benefits all of humanity.
2. Caring for the Future: A Legacy Mindset and a commitment to Intergenerational Justice are vital to ensure that the choices we make today protect and enrich the lives of future generations.
3. Planning Beyond Our Lifetimes: Skills like Cathedral Thinking, like creating long-term projects that may not be completed within a single lifetime, and Holistic Forecasting, which takes a wide view of potential outcomes, are essential for shaping a sustainable future.

The Marshmallow Brain: Why We Chase Short-Term Pleasures

Human brains are wired to seek instant gratification and avoid immediate discomfort, a system that evolved to help our ancestors survive in environments where food was scarce or safety was uncertain. This focus on short-term desires, known as the Marshmallow Brain, can sometimes spiral into impulsive behaviors and addictions.

In the modern world, digital technologies amplify this tendency by shrinking our focus even further. They pull us into an ever-narrowing time frame where most of our attention is locked on the immediate present, leaving little room for long-term thinking.

The Acorn Brain: Humanity’s Key to Long-Term Thinking

While our Marshmallow Brain craves instant rewards, our Acorn Brain is what enables us to envision distant futures and work toward long-term goals. This remarkable ability allowed early humans to save seeds for planting crops, resisting the urge to consume them during harsh winters, a testament to our species’ capacity for forward-thinking and patience.

The frontal lobe is where much of this future-focused thinking occurs. Often called a “time machine,” it allows us to project our minds years or even decades into the future, map out complex plans, and engage in abstract reasoning. Interestingly, the frontal lobe is a relatively new evolutionary development, appearing just 2 million years ago compared to the first brains, which evolved 500 million years ago.

Despite this potential, studies reveal that most of our future-related thoughts remain focused on the near term. Around 80% concern the next day or two, 14% extend beyond a year, and only 6% look more than a decade ahead. Unlocking the true power of our Acorn Brain begins with recognizing its existence and embracing its capacity to shape a sustainable and meaningful future.

The Tug of War Between Instant Gratification and Long-Term Vision

The dynamic between our Marshmallow Brain and Acorn Brain is the main point to what makes us uniquely human. While one drives us to seek immediate pleasures and avoid pain, the other enables us to think ahead, plan for the long term, and pursue goals far beyond the present. This constant interplay shapes our decisions, balancing short-term impulses with the potential for long-term foresight, a delicate dance that defines much of the human experience.

How Humans Evolved to Think Ahead

The ability to anticipate what lies ahead, adapt to change, and create plans was a survival strategy that compensated for what humans lacked in physical strength or speed. This remarkable cognitive leap unfolded over millennia, driven by four key factors that shaped our capacity for long-term thinking:

1. Wayfinding: Early humans developed the ability to navigate physical spaces by creating mental “cognitive maps.” These maps helped them recognize landmarks, follow familiar routes, and safely return home. This skill also extended to mapping time, preparing them for future challenges.
2. The ‘Grandmother Effect’: Grandmothers played a vital role in human evolution by providing care for children, which extended intergenerational time horizons and strengthened familial ties.
3. Social Cooperation: Trust, reciprocity, and empathy became the building blocks of cooperative relationships that endured over time. These bonds relied on the imaginative capacity to foresee the future, knowing that helping someone today would likely lead to receiving help in return when needed later. In this way, time became an integral part of mutual aid and social contracts.
4. Tool Innovation: The creation of advanced tools, such as complex stone implements, required humans to plan sequenced actions and envision future goals, skills that further enhanced their ability to think long-term.

Interestingly, even with these evolutionary advantages, our ability to imagine the distant future remains limited. Survey data shows that many people struggle to picture more than 15–20 years ahead, which explains why saving for old age can feel so challenging. Recognizing and addressing this limitation is key to unlocking our full potential as future-oriented beings.

6 Strategies to Think Beyond the Present

To prepare for the long-term and become good ancestors, we need a mental toolkit that helps us reimagine our relationship with time, community, and the planet. These six strategies serve as a guide for both personal reflection and collective progress:

1. Deep Time Humility

Modern life has severed our connection with time’s natural rhythms. The clock, once a tool for coordination, became a tool of control during the Industrial Revolution, shrinking our focus to immediate goals. Today, digital technology exacerbates this, tethering us to the “electronic now.”

Deep Time Humility offers an antidote by encouraging us to consider the long-term consequences of our actions and reconnect with nature’s cycles, such as the millennia-long carbon cycle. By situating ourselves within the vast timeline of life on Earth, we can act with purpose rather than be consumed by short-term pressures.

2. Legacy Mindset

Legacy is mainly about cultivating something meaningful for future generations.

• The Death Nudge: Reflect on how you want to be remembered. Asking questions like “What might our descendants wish we had done better?” fosters intergenerational care.
• Intergenerational Gifts: Recognize that we are beneficiaries of past generations’ labor and knowledge. Passing something forward—whether it’s children’s clothes or sustainable practices—deepens our connection with humanity’s future.
• Whakapapa Wisdom: Inspired by the Māori concept of an unbroken lineage connecting past, present, and future, this approach reminds us that legacy isn’t something we leave but something we grow continuously.

3. Intergenerational Justice

True long-term thinking considers the rights of people who will live seven generations from now. The economic principle of discounting, which values present benefits over future ones, is a form of intergenerational oppression.

While growth and technological progress may equip future generations to solve certain challenges, relying solely on this assumption ignores the irreversible damage of climate change. Protecting future lives requires moral and political action today, without dismissing their importance for short-term gains.

4. Cathedral Thinking

Inspired by medieval cathedral builders who embarked on projects spanning centuries, Cathedral Thinking calls for planning beyond a single lifetime.

Sometimes, crises like ecological breakdowns can ignite radical long-term visions, what could be termed sewer thinking. Recognizing these crises as opportunities for systemic change allows us to craft roadmaps for a more resilient future.

5. Holistic Forecasting

This strategy focuses on exploring multiple potential pathways for humanity, acknowledging the uncertainties of the future.

Tools like the S-curve, which tracks growth, maturity, and decline, help identify patterns in human affairs. Though it can’t predict exact timelines, this approach prepares us to adapt and build resilience, ensuring we’re ready for inflection points or even collapse.

6. Transcendent Goal

To guide humanity’s actions into the distant future, we need an overarching goal that prioritizes the well-being of future generations. Five possible visions emerge:

a. Perpetual Progress: A focus on endless economic growth, now outdated for a sustainable future.

b. Utopian Dream: Reconfiguring society around ideals of equality and social justice, offering inspiration for change.

c. Techno-Liberation: Using technology to transcend human limits or colonize other planets, though this vision requires wisdom to ensure it benefits humanity.

d. Survival Mode: Preparing for civilizational collapse by developing survival skills—a necessary but defeatist mindset if it assumes change is impossible.

e. One-Planet Thriving: The most balanced approach, emphasizing meeting the needs of current and future generations within the limits of a flourishing Earth. This perspective shifts focus from just time to caring for place, recognizing that survival depends on maintaining harmony with the ecosystem.

What Holds Us Back from Long-Term Thinking?

Shifting our focus from immediate concerns to the distant future is no small task. While our Marshmallow Brain’s tendency for short-sightedness is the obvious culprit, several deeper barriers make long-term thinking a challenge:

1. Outdated Institutional Designs: Our systems lack mechanisms to represent the needs and interests of future generations. Without these structures, tomorrow’s voices remain unheard in today’s decision-making.
2. The Power of Vested Interests: Powerful entities, from fossil fuel corporations to financial speculators, prioritize short-term profits over long-term sustainability, creating an economic ecosystem fueled by instant gratification.
3. Insecurity in the Present: For those grappling with immediate concerns, such as hunger, job instability, or safety, planning for the distant future can feel like an unattainable luxury.
4. Insufficient Sense of Crisis: Many people lack the urgency or fear needed to inspire radical, forward-thinking action. Without a tangible crisis, long-term thinking often takes a backseat to day-to-day survival.

The Role of Ideas

Despite these obstacles, human action is driven by ideas. Just as short-term thinking dominates now, ambitious ideas about the future can reshape priorities. To win the tug of war between short- and long-term thinking, we need to act with greater urgency and vision, ensuring the future is not continually sacrificed for the present.

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Author: Roman Krznaric
Publication date: 27 August 2020
Number of pages: 336 pages

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