How Do You Spot Decision‑Making Biases Before They Lead You Astray?

What’s the Smartest Way to Reduce Cognitive Biases in Everyday Choices?

A clear, practical guide to the five cognitive biases that most often derail decisions, plus simple strategies to counter them using the 5Bs framework. Ideal for readers who want to strengthen judgment, think more clearly, and make choices that support long‑term goals.

Continue reading to learn how these five biases show up in real life and how the 5Bs can help you make choices your future self will appreciate.

Behavioral economists have cataloged over 200 cognitive biases, but five in particular are responsible for most regrettable decisions. Once you know their names and how they operate, you can catch them in the act and use the 5Bs (banish, buffer, best-case, bring in, and break up) to counteract these biases and make decisions your future self will thank you for.

Bias #1: Option Blindness (aka Availability Bias)

Your brain gravitates to options that are easily available and easy to recall. Once it finds a couple of familiar options that are “good enough,” it stops looking—even if better ones are hiding just out of sight. The book Decisive by Chip and Dan Heath taught me to counteract this bias by temporarily banishing easily available options and being forced to find one promising alternative.

Imagine you were simply not allowed to invest in tech stocks or ETFs. Where would you invest your money now? This mental simulation might get you to ask around and have a friend introduce you to a private real estate fund that’s been quietly generating between 12 to 20% a year for the past 10 years. One hour of curiosity could generate an extra $100,000 over a decade!

Bias #2: Chronic Underestimating (aka The Planning Fallacy)

We base big decisions on best-case scenarios. Our minds inherently hate delays, interruptions, procrastination, and unexpected problems, so we don’t give them much weight when planning. In other words, when we don’t like that something might happen, we’re less likely to believe it will happen—so we chronically underestimate timelines and costs.

Counteract the ‘Planning Fallacy’ by looking at a promising option and asking: “If pursuing this option took 50% longer and cost 50% more than I think, would it still be worth it?” That 50% margin might sound high—but studies and post-mortems across industries (from software to construction) show it’s a realistic buffer.

Bias #3: Initial Preferencing (aka Confirmation Bias)

We usually make big decisions within minutes, based largely on an emotional response, and then spend days or weeks gathering information to support that first feeling. In doing so, we might miss a better option—one that didn’t feel exciting right away, but was actually a smarter fit. Luckily, we can counter Initial Preferencing by looking at other options, one at a time, and asking a powerful question: “What would have to be true for this to be the best option?” It’s a strategy from Roger Martin, author of Creating Great Choices, and it forces you to see the benefits of the other options you’re not considering. If you initially like the idea of starting a business with a friend, stop and ask yourself, “What would have to be true for going solo to be the best choice?” You may realize that if you had outside accountability and hired part-time help, you’d move faster and keep full control.

Bias #4: Short-termism (aka Temporal Discounting)

We often fail to weigh our options logically because we prioritize short-term convenience over long-term benefits. To counteract this tendency, try imagining that a trusted friend is making the decision for you. This friend knows exactly what you want out of life and genuinely wants what’s best for you. Imagining a friend is deciding for you allows you to temporarily step outside your immediate emotions and short-term fear. If you’re hesitating on a career transition, you might imagine a wise, caring, and calm friend saying, “In five years, you still won’t be happy with your career. Make the move now.”

Bias #5: Early Overcommitting (aka Overconfidence Bias)

Typically, when we are 99% sure we are making the right decision, the odds of success are much, much lower. The brain craves certainty, so it manufactures false confidence and sees no problem making a large commitment.

Counteract ‘Early Overcommitting’ by making the smallest initial commitment possible and then giving yourself the option to pivot or reverse course in the short-term for minimal cost. Instead of signing a lease for a big coffee shop store, start with a six- month pop-up inside a shared retail space. Lease the equipment month-to-month, hire part-time help, and set a clear decision point: If this doesn’t hit X sales by month three, I’ll pause and reassess.

Whenever you’re about to make a decision with real consequences, use the 5Bs to maximize your long-term happiness and fulfillment:

• Banish easily available options to counteract option blindness and discover more promising alternatives.
• Buffer your time estimates by 50% to account for inevitable delays your optimistic mind wants to forget.
• Best-case each option by asking, “What would have to be true for this to be the best choice?” to counter confirmation bias.
• Bring in an imaginary friend to make the decision for you so you can see past short-term fear.
• Break up your decision into a series of smaller, low-cost commitments, allowing you to pivot if things don’t work as well as you believe they will.