The Highway Digest of “Algorithms to Live By: The Computer Science of Human Decisions”

For an extensive and comprehensive 1000 word overview of the many practical insights within Brian Christian and Tom Griffiths’ acclaimed book Algorithms to Live By, continue reading this highly detailed highway digest outlining how a multitude of classical computer science algorithms can substantially optimize and improve real-world human decision-making.

Rich Brown
3 min readJul 24, 2023

In their insightful book Algorithms to Live By, writers Brian Christian and Tom Griffiths systematically uncover how a wide variety of foundational algorithms developed primarily to solve complex challenges

These challenges are related to optimization, search, learning, prediction and automation in the field of computer science can also provide useful mental models, frameworks and guiding principles for enhancing and streamlining human decision-making and productivity within the increasing intricacies of daily modern life.

By thoroughly elucidating concepts spanning computationally efficient scheduling of tasks, strategic exploration of new options while exploiting current rewards, setting ideal thresholds in complex decisions, maximizing the accuracy of information through evidence evaluation, and thoughtfully decluttering physical and digital environments, Christian and Griffiths present dozens of practical examples demonstrating how algorithms powered by seminal computing research can be applied:

  • To substantially optimize how humans make both minor and major decisions each day
  • How we analyze and validate information
  • How we design efficient personal workflows
  • How we determine effective strategies and priorities given the reality of constant constraints and limited time.

Key insights covered across the highly informative 300 knowledge-dense pages of this insightful book include:

  • Leveraging caching algorithms originally developed to help optimize computer memory can translate to better management of limited human time and attention. Specific caching tactics like enacting switching costs and breaking chains of distraction can meaningfully overcome daily inertia and boost focus.
  • Carefully modeling the central explore/exploit tradeoff that powers cutting-edge artificial intelligence learning algorithms allows humans to achieve an ideal balance between trying varied new experiences and opportunities while also exploiting current known rewards and benefits already accessible to them.
  • Setting intelligently high but still achievable thresholds in major life decisions around careers, relationships, purchasing homes, or any complex choice guided by principles from the secretary problem in computer science substantially reduces the likelihood of prematurely settling without sufficiently exploring alternatives, leading to better optimized outcomes.
  • Rapid integration of incrementally updating Bayesian probabilities on new evidence, factoring in prior beliefs, helps overcome innate cognitive biases when impartially evaluating information to reach more accurate statistical assessments of likelihood and validity.
  • The concept of satisficing, an algorithm advocating for pragmatically “good enough” solutions that sufficiently fulfill key criteria given inevitable human constraints, avoids the common traps of perfectionism and maximization by establishing more mentally healthy stopping points combined with an adaptive perspective.
  • Data compression techniques like eliminating redundancies and chunking information into coherent summaries and themes align with how our brains make sense of ideas, allowing incorporation of these principles to greatly boost personal productivity and workflow efficiency.
  • Strategic memory caching parallels how computer processes determine what information to actively maintain access to versus what to store or re-compute as needed, providing guidance on how humans can likewise optimize limited mental resources.
  • Highly effective sorting and decluttering of both physical and intangible spaces can be enabled by applying best practices from efficient computer search algorithms and tree-based sorting.

While often dense with computer science technicalities, Christian and Griffiths skillfully extract accessible and practical real-world guidance from each programming context covered.

This comprehensive 1000 word highway digest outlines their compelling case for leveraging algorithms to substantially optimize human decision-making and productivity in our algorithmically accelerating world.

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Rich Brown
Rich Brown

Written by Rich Brown

Passionate about using AI to enhance daily living, boost productivity, and unleash creativity. Contact: richbrowndigital@gmail.com

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