Probability or Possibility
Catch past-based predictions and choose a present-tense experiment instead
- Difficulty
- Moderate
- Time to result
- ~ongoing to results
- Steps
- 5
- Confidence
- 92%
This model distinguishes two sources of action. Probability relies on evidence from the past and can quietly turn previous outcomes into a fixed forecast. Possibility asks what remains available in the present moment, even when the old evidence is discouraging. The point is not to deny facts but to stop treating history as destiny. Name the experience driving the prediction, identify a plausible alternative, and run a small test that can create new evidence. Heller links this orientation to optimism and grit: repeated work is difficult to sustain when each failed attempt is interpreted as proof that success is unavailable. Possibility keeps the next experiment psychologically and practically open while allowing results to update the path.
Origin
Heller presents the distinction in her book and connects it to optimism as a discipline that sustains grit through repeated attempts.
Core principles
- 01Probability often projects past evidence onto the future
- 02Possibility starts with what can be created now
- 03Optimism sustains repeated attempts after failure
- 04Action tests possibilities that analysis cannot settle
How to run it
- 1
Identify the forecast
State what you currently expect to happen and why. Look for a previous failure or pattern being projected onto the next attempt.
Pro tip Use the sentence 'Because that happened, I expect...' to expose the link.
Watch out Do not discard relevant evidence; distinguish evidence from inevitability.
- 2
Return to the present
List what is true and available now, including skills, people, choices, and changed conditions. Remove assumptions that exist only because of the previous outcome.
- 3
Name a possibility
Form a specific alternative that could be true without claiming certainty. Make it concrete enough to test.
Pro tip Prefer 'This contact may respond to a different offer' over 'Everything will work out.'
Watch out Vague positivity is not a usable possibility.
- 4
Run the next experiment
Take one bounded action that gives the possibility a chance to produce evidence. Keep the test small enough that failure remains informative rather than final.
Pro tip Choose an action you can complete before motivation fades.
Watch out Possibility without action becomes fantasy.
- 5
Update without collapsing
Use the result to improve the next attempt while preserving other plausible routes. Let evidence refine the method rather than define your identity.
Watch out One failed test does not justify the claim that nothing is possible.
In the wild
A consultant sends ten generic pitches and receives no replies. Probability says the market does not want the service. She instead notes that the messages offered no specific value, creates a personalized audit for five better-matched prospects, and measures whether the response changes.
→ The failed batch becomes input to a new experiment rather than a permanent market verdict.
Common mistakes
Confusing possibility with certainty
The model opens a route for testing; it does not promise the desired outcome. Keep claims proportional to the evidence.
Ignoring real downside
Past evidence can contain valid warnings. Preserve safety limits while challenging the claim that only one future is available.
Is it for you?
Best for
People facing uncertain creative, scientific, career, or business work that requires repeated attempts.
Not ideal for
High-stakes decisions where optimism is used to ignore concrete safety risks or downside limits.
From the transcript
“people either live from probability which is really just called the past what evidence they have of the past or possibility which is in the…”
“what makes a person gritty is optimism because in order to be in the science lab again and again and again and have the resilience…”
“optimism has to be something and that is a discipline”
From the episode
Episode 403: Cathy Heller: Why Women Should Embrace Wealth and Live in Possibility, not Probability
Cathy Heller