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February 26th, 2026
​A newsletter by Anne-Laure Le Cunff​

💣 Premature Certainty

We’ve all been in meetings that feel highly effective. Someone frames the problem, another person confidently proposes a solution, and within minutes the room converges. Everyone nods, action items are assigned, and everyone leaves feeling productive.

Six weeks later, the project is drifting, and no one can quite explain why. The issue is that the first plausible idea sounded confident enough to become a plan.

This is premature certainty: committing to a direction before you’ve tested it. Because premature certainty is so insidious, it can actually be more dangerous than making big mistakes.

Premature certainty is difficult to recognize because it can feel like leadership. Organizations often reward decisiveness and speed, while hesitation can be interpreted as confusion. Over time, teams learn to converge quickly.

Yet research in organizational psychology suggests that groups willing to acknowledge gaps in their knowledge consistently make better decisions.

That’s because people usually stop raising doubts once a direction appears settled. When uncertainty is openly expressed, it’s easier for edge cases and risks to emerge. And when we confidently make a decision too early, those signals disappear.

The failure that follows comes from information that never even entered the conversation.

So, how do you avoid premature certainty? The shift is less about new tools than about changing team habits:

1. Name assumptions explicitly. Before committing to a direction, ask what the team is assuming but hasn’t verified. Identify the riskiest assumption and design a tiny experiment that could challenge it.

2. Encourage social flow. Let team members run their own tiny experiments and share insights freely. Reduce perceived barriers and artificial hierarchy so the focus shifts from “Who is right?” to “What can we learn?”

3. Redefine success as learning. Treat unexpected outcomes as useful data. When your team understands that learning matters as much as results, people will feel more comfortable taking informed risks and testing their ideas earlier.

The next time your team quickly aligns around an answer, it can be worth pausing to ask: do we have any evidence for this yet, or are we simply relieved to have certainty?

If the honest answer is “not yet” that’s not a problem. Treat the uncertainty as an opportunity to learn before committing: design a tiny experiment and let the results inform your next steps.

The most effective leaders are not those who rush toward answers, but those who are willing to stay uncertain long enough for liminal spaces to provide answers.

🔬 Tiny Experiment of the Week

Ready to put these ideas into practice? Try this week’s tiny experiment to reduce premature certainty:

This experiment shifts your focus from providing confident answers to defining your hypotheses. I will also help normalize curiosity and make it easier for others to share both what they know and what they don’t yet know. Want to dig deeper? Get your copy of the book​.

👀 Into the Mind of...

CHRIS BAILEY

Each week I ask a curious mind about their habits, routines, and rituals. This week we learn from productivity expert Chris Bailey, whose latest book Intentional explores the science of finishing what you start.

1. One strategy to restart your creative engine? I hop on a city bus. While on the bus, I mostly people-watch, listening to classical music or whatever kind of music helps me reflect. I always bring a notepad with me. By the time I get home, I will almost always return with the notepad full of ideas.

2. One daily practice you can't do without? Setting three daily intentions. Every single morning, I reflect: what three things will I want to have accomplished by the day’s end? It’s a simple ritual, but like with a lot of intention rituals, if you try it, you’ll make this time back many times over.

3. One habit you wish you had? My guilty pleasure is ordering too much takeout. Especially when it comes to sushi. So I guess the habit I wish I had would be the reverse of this: eating more home-cooked meals. But sushi is also very delicious. So, you could say I’m still contemplating this habit!

Read Intentional

🗓️ Community Events

If you enjoy the newsletter, you’ll love our community of curious minds conducting tiny experiments within a safe space and learning together. Here is an overview of upcoming events (full calendar):

• Discover the science of belief. In today’s author session with Nir Eyal, you’ll learn how to spot the difference between liberating beliefs and limiting beliefs and how to identify the 3-5 core limiting beliefs that are quietly running your life.​
• Relearn how to rest. Join Gosia Fricze on Monday for a creative hour session to explore your relationship with rest, unlearn productivity-driven guilt, and rediscover rest as a vital part of creative renewal.​
• Learn the art of discernment. Join this workshop with Laurent Marbacher, who will give you practical tools and insights to develop that skill to improve your experience of making choices that matter.
​• Make progress on your project. Join Kathryn Ruge for a ‘body doubling’ coworking session to work on personal or work-related projects that you want to make progress on, covering all timezones.
• Improve your knowledge management system. Join the next PKM Collective meeting where we learn from one another through sharing how our systems work in the real world and give new PKM users a leg up.
​• Host your own workshop (anytime!). Do you have an idea for a short presentation and Q&A or a workshop you’d like to trial? Test your first iteration in the Ness Labs community and get feedback. We promote all sessions here in the newsletter.

All of these and future events are included in the price of the membership (only $49 for one year), as well as access to our courses, workshop library, and a dedicated space to track your tiny experiments.

📚 Book of the Week

Big congrats to Leslie John, a behavioral scientist and leading privacy expert at Harvard Business School, on the launch of her new book Revealing, which explores decades of research into the kind of healthy oversharing that can deepen relationships.

Until next week, take care!
Anne-Laure.