Episode 2

The Science of Human Decision-Making – Stop Talking to the Wrong Brain

Patrick van der Burght
36 min
21 OCT 2025
“Every untrained conversation costs you conversions, and your competitors are learning the science.”

About this podcast

Why are your well-reasoned proposals, marketing messages, and leadership directives met with indecision? The answer lies in a fundamental misunderstanding of how the human brain works. We spend our time crafting rational arguments for an audience that makes 95% of its decisions intuitively.

This episode dives into the groundbreaking research of Nobel laureate Daniel Kahneman to explain the two systems of the brain: the fast, automatic System 1 and the slow, lazy System 2. You’ll discover why your efforts are getting less effective and learn how to align your communication with the science of human behaviour to regain your competitive advantage.

In This Episode, You’ll Learn:

  • System 1 vs. System 2 Thinking: A clear breakdown of the intuitive brain that runs the show versus the logical brain that we think makes decisions.
  • The “Lazy Controller”: Why the logical System 2 brain often accepts System 1’s suggestions without question.
  • Mental Shortcuts (Heuristics): Understand why rules of thumb like “expensive = good” are powerful decision-making shortcuts for your audience.
  • Why Our Attention Span is Now Shorter Than a Goldfish’s: How information overload forces our brains to rely almost exclusively on System 1.
  • The Cost of Targeting the Wrong Brain: How much profit, progress, and success is slipping through your fingers by aiming your arguments at the 5% brain?
  • Case Studies of Success: Discover how simple, science-backed changes led to a 20% increase in booked appointments and a 45% sales boost for Bose.

Key Concepts Explained

System 1 (The Intuitive Brain) System 2 (The Logical Brain)
Fast & Automatic Slow & Deliberate
Runs on shortcuts & intuition Requires effort & concentration
Always on, effortless Lazy, must be forced to engage
Error-prone but efficient More reliable but rarely used
Makes 95% of decisions Makes only 5% of decisions

The critical mistake most businesses make is that inevitably, if team members don’t know the science of human decision-making and ethical persuasion, they default to creating messages aimed at System 2 in their audience and expecting the audience to process and make a decision based on that. In our stimulus-saturated world, that rarely happens, and causes more uncertainty in our audience. They then push back from your well intended and possibly excellent value proposal.

Resources Mentioned

  • Books:
  • People:
    • Daniel Kahneman: Nobel Prize-winning psychologist and behavioural scientist.
    • Dr. Robert Cialdini: The foundational expert on the science of persuasion.
  • Training & Consulting:
    • Ready to learn this properly? Visit ethicalpersuasion.com.au to learn about our keynotes and training programs or to book a complimentary discovery call.
  • Complimentary Membership Portal: Join our new community to get early access and track episodes, and access guest giveaways as well as free resources.

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Episode Topics:

Persuasion InsightsLeadershipSocial InfluenceSales TechniquesSelf Improvement

Transcript

Key Takeaways from This Episode

1. It’s becoming harder to convince, sell to, and engage people because most businesses communicate using rational arguments (System 2) while audiences nowadays make about **95% of their decisions intuitively** (System 1).
2. Daniel Kahneman’s research revealed that System 1 is fast, automatic, and effortless, while System 2 is slow, deliberate, and lazy—only engaging when forced.
3. Shrinking attention spans and constant digital stimulation have increased our reliance on System 1, making rational, data-heavy messages far less effective.
4. Ethical persuasion works by aligning communication with **System 1 triggers** rather than overwhelming people with logic alone, and enabling those YES decisions.
5. Real-world examples (e.g., Bose’s 45% sales increase) show that small persuasion shifts can lead to major improvements in sales, trust, engagement, and buy-in.