Black swans: finding hidden leverage
Most negotiations fail because both sides assume they know everything that matters.
The real breakthroughs come from discovering information neither side expected to share — the unknown unknowns that change everything.
Deep dive theory
Why this matters?
A company negotiates to acquire a smaller competitor. The price discussions are stuck. The buyer offers $40 million. The seller wants $60 million.
Months of back-and-forth produce no movement. Both sides assume this is purely a price negotiation.
Then someone discovers: the seller's founder is planning to retire and relocate within months. He does not care about the extra $20 million — he cares about his employees being treated well after the acquisition. The deal closes in two weeks with additional job guarantees instead of price changes.
The pattern: Every negotiation has hidden information that, if revealed, would change everything. These are called Black Swans — unexpected facts that flip assumptions and create new possibilities.
The opportunity: The negotiator who discovers Black Swans gains leverage that others miss. This is not about being smarter — it is about asking the right questions and listening for what is not being said.
1. What Black Swans are
The term comes from the ancient belief that all swans were white — until black swans were discovered in Australia. A Black Swan is something assumed to be impossible until proven otherwise.
In negotiation, Black Swans are:
- Information the other side has not shared
- Constraints, motivations, or pressures that are not obvious
- Facts that would change your entire strategy if you knew them
Examples of Black Swans
- A seller who needs cash immediately for a personal emergency
- A buyer who must close this deal to keep their job
- A vendor whose current client is about to leave
- An executive who has a personal relationship with your competitor
- A timeline driven by a board meeting nobody mentioned
These are not secrets exactly — they are just information that has not come up yet because nobody asked.
2. Why Black Swans stay hidden
If Black Swans are so valuable, why do they not surface naturally?
People assume what matters to them matters to you
The seller focused on price did not think to mention their founder's health — it seemed irrelevant to the business discussion. But it was the key to everything.
People filter information based on their own assumptions. They share what they think you want to hear.
People fear vulnerability
Revealing constraints feels like giving up power. If the seller admits they need quick cash, they worry the buyer will exploit that. So they hide it — and the negotiation stalls because the real issue stays invisible.
People are running their own script
Both sides enter negotiations with prepared positions. They are focused on delivering their arguments, not genuinely exploring the situation. Questions that might reveal Black Swans are not asked.
3. How to find Black Swans
Black Swans are discovered through deliberate techniques — not by accident.
Active listening
Most people listen to respond. Finding Black Swans requires listening to understand. This means paying attention to:
- What is emphasized repeatedly
- What is conspicuously avoided
- Emotional shifts in tone or body language
- Statements that do not quite fit the narrative
When something seems off, dig deeper rather than moving on.
Calibrated questions
Open-ended how and what questions encourage the other side to share more than they planned.
- What is driving your timeline?
- How does this decision get made on your end?
- What happens if we do not reach agreement?
- What else should I know about your situation?
These questions are not accusatory. They invite the other side to explain — and in explaining, they often reveal more than intended.
Labeling and mirroring
As covered in Lesson 1, these techniques encourage elaboration. When someone says something interesting, mirror it back or label the emotion. They will often expand with additional context.
Them: We have been burned by vendors before.
You: Burned by vendors?
Them: Yes, our last implementation went over budget by 200% and almost got our CTO fired...
Now you know something important about their risk tolerance and who has internal power.
4. Recognizing Black Swans when they appear
Sometimes Black Swans appear in conversation but are not recognized as important.
Signs a Black Swan is nearby:
- Emotional intensity that seems disproportionate to the topic
- Sudden changes in the other side's behavior
- Throwaway comments that hint at larger issues
- Contradictions between what they say and how they act
- Unexpected resistance to points that seemed minor
When you notice these signals, pause. Ask a follow-up question. Do not let the moment pass.
The rule of three
Chris Voss recommends asking three different questions to explore the same topic. Each question approaches from a different angle. By the third question, deeper truths often emerge.
What is most important to you in this deal?
If you had to prioritize, what would you give up last?
What would make you feel this deal was successful in a year?
These questions seem similar but probe differently — and the answers may reveal Black Swans.
5. Using Black Swans once found
Knowing a Black Swan gives you leverage. But using it requires judgment.
Addressing their hidden need
If you discover the seller cares about employee welfare, you can address that directly:
It sounds like making sure your team is taken care of matters a lot to you. Let me tell you about our integration process and how we have handled acquisitions before.
You are not manipulating — you are solving a problem they care about deeply but had not articulated.
Creating new options
Black Swans often reveal that the negotiation is not what you thought it was. A price negotiation might really be about timing, legacy, relationships, or risk.
Once you know the true issue, you can propose solutions that were not on the table before. This is how deals that seemed impossible suddenly close.
Knowing when not to push
Some Black Swans are sensitive. Revealing that you know someone's hidden vulnerability can destroy trust if handled poorly.
Sometimes the right move is to solve the problem without explicitly naming it. Address their underlying concern without forcing them to admit it openly.
6. When Black Swan hunting fails
Not every negotiation has a discoverable Black Swan.
Some negotiations are simple
If someone is selling a commodity at a known market price, there may be no hidden information that changes the dynamic. Price is the only issue.
Some Black Swans are hidden too deep
People have reasons for what they keep private. No amount of skilled questioning will uncover information they are determined to protect.
Time constraints
Finding Black Swans requires conversation time. In fast negotiations — auctions, short sales cycles — there may not be opportunity for the exploration needed.
Diminishing returns
Once you have found the key Black Swans, continuing to probe can feel like an interrogation. Know when you have enough information and move toward resolution.
Think
What would you do in these scenarios?
Simulator
The board meeting deadline
You are negotiating a partnership deal with a mid-size company. Price talks are going nowhere — you are at $120,000, they insist on $80,000. During a break, their lead negotiator mentions casually: We really need to announce something big before the board meeting next month. What do you do with this information?
Practice
Test yourself and review key terms
Knowledge check
What makes something a Black Swan in negotiation?
Concepts
Click to reveal
Do
Your action steps for today
Action plan: what to do today
- Challenge your assumptions:In your next negotiation, list three things you are assuming about the other side. What if each assumption is wrong? What would change?
- Prepare discovery questions:Write three calibrated questions designed to reveal hidden information. Practice asking them without sounding like an interrogation.
- Review after the conversation:What surprised you? Any unexpected statements, emotional shifts, or inconsistencies? These may point toward Black Swans you did not fully explore.
Some examples and details may be simplified to better convey the core idea. Every business is different — adapt these ideas to your specific context and situation.