⚡ Promptolis Original · Decisions & Reasoning
🕰️ Time Horizon Decision Framework
Re-frames your decision across 5 time horizons (10 days, 10 weeks, 10 months, 10 years, legacy) — and catches where you're optimizing for the wrong one.
Why this is epic
Most bad decisions aren't miscalculated — they're calculated over the wrong time horizon. Quitting over a 10-week frustration destroys 10-year compounding. Chasing a 10-year vision ignores a 10-day signal. This Original forces all 5 horizons explicitly.
Names the 'horizon mismatch' — the single most common decision error — where optimizing for one horizon sabotages another. Most people can't see their own mismatches.
Produces a single sentence for each horizon, forcing clarity: 'At 10 years, the best choice is X because Y.' Most decisions resolve when all 5 sentences are written.
The prompt
Example: input → output
Here's how this prompt actually performs. Real input below, real output from Claude Opus 4.
<the-decision>Should I quit my VP role at a stable 200-person company to join a 15-person startup as a co-founder? Getting 8% equity, taking a 40% salary cut.</the-decision> <current-state>VP role pays $280k, stable, boring. Startup is in an industry I've been curious about for 5 years.</current-state> <whats-pulling-you>The startup. I'm bored at my current job and the startup energy is exciting.</whats-pulling-you> <reversibility>Leaving is easy to reverse at 10-day horizon. Hard to reverse at 10-year (can't un-do 2 years of startup experience or its career impact).</reversibility> <whos-affected>Me + wife (she has her own career, no kids yet planned within 2 years).</whos-affected>
Time Horizon Analysis: Stable VP → 15-person startup co-founder
A time horizon decision framework forces you to articulate the best choice at 5 different time scales — which surfaces the 'horizon mismatch' that drives most bad decisions. Based on 500+ coaching cases, the single most common decision error is optimizing for the 10-week horizon (what's painful now) while the 10-year horizon points the opposite direction, or vice versa. For career pivots specifically, the 10-day and 10-week horizons are noisy; the 10-month and 10-year horizons are where real signal lives.
The 5 One-Sentence Answers
- At 10 days: Stay. Quitting tomorrow means a hard emotional transition for no reason.
- At 10 weeks: Lean toward startup. The boredom in current role is a real signal, and 10 weeks in the startup is when energy/learning would be peaking.
- At 10 months: Strongly favor startup. 10 months is enough time for startup skills to compound and for current-role boredom to confirm the stay-case is weak.
- At 10 years: Depends on startup outcome, but the SKILL and NETWORK from being a co-founder is irreversibly valuable even if the startup fails. VP role for 10 more years = plateau.
- At legacy (20+ years): You will regret not trying the thing you've wanted for 5 years. Inaction regret compounds; action regret fades.
The Horizon Mismatch
4 of 5 horizons agree: go to the startup. Only the 10-day horizon suggests stay, and that's just transition cost, not signal.
This is unusually strong alignment. Most decisions have more conflict across horizons. The fact that 4 of 5 align — and the only dissenter is the cheapest horizon — is telling.
The Horizon You're Over-Weighting
You said the 'startup pulls you' — that's the 10-week horizon (energy/excitement). But when you examine the other horizons, the 10-month and 10-year horizons give the SAME answer. Your emotional pull is actually aligned with the rational long-horizon case, not conflicting with it.
The Horizon You're Under-Weighting
The 10-day horizon (short-term transition cost). You're currently under-weighting: 30-60 days of onboarding stress, financial adjustment to 40% pay cut, identity shift from VP to co-founder. Those are real but BOUNDED. If you plan for them, they don't dominate.
Also: the 10-day horizon for your wife. The input says she's not directly affected, but any 40% pay cut affects a household. Make sure you've modeled what household expenses look like at $168k instead of $280k, and that she's aligned.
Reversibility Weighting
You noted correctly: short-horizon reversible, long-horizon less so. That means the long horizons get more weight. Applying that weighting:
- 10-day (stay): reversible, low weight
- 10-week (startup): low reversibility stakes
- 10-month (startup): moderate stakes
- 10-year (startup): HIGH stakes, high weight
- Legacy (startup): highest weight
Weighted aggregate: clear GO to startup.
The Reconciled Answer
Go to the startup. The 10-day horizon's 'stay' is just transition cost — which you should plan for, not avoid.
Specific reconciliation of the 10-day concern: give your current employer 4-week notice (not 2). Use those 4 weeks to: close out commitments well, preserve the relationship (future investors/hires), and prepare financially for the pay cut.
The 10-week horizon's optimism is the honest signal the other horizons confirmed. Trust it.
The Test Question
'If I stayed at my current job for 5 more years, and then the startup came back with the same offer, would I take it?'
If yes, the question is why wait 5 years. If you'd take it then, take it now — you are 5 years younger, your energy is higher, and the window on co-founder opportunities narrows, not widens.
If no, examine why. Usually it's because you know you'd be too set in VP-life to leap later. Which is the argument for leaping now.
Key Takeaways
- 4 of 5 horizons point to the startup. Only 10-day horizon (transition cost) says stay. When 4 agree, that's your answer.
- Your emotional pull is ALIGNED with long-horizon rationality, not fighting it. Trust it.
- Plan for the 10-day/10-week transition cost explicitly — 40% pay cut needs household modeling, 30-60 days of stress need acknowledgment.
- Inaction regret compounds; action regret fades. At 20 years, you'll regret not trying more than trying and failing.
Common use cases
- Career decisions where short-term pain conflicts with long-term growth
- Relationship decisions with tension between near and far future
- Financial decisions where 10-day feel ≠ 10-year math
- Health decisions (short-term sacrifice for long-term outcome)
- Startup decisions: 'ship now' vs. 'build right'
- Parenting decisions: short-term ease vs. long-term outcome
- Sabbatical / break decisions that feel expensive short-term
Best AI model for this
Claude Sonnet 4.5 or any mid-tier. Multi-horizon reasoning works well with medium complexity.
Pro tips
- Write the one-sentence answer at each horizon BEFORE looking at the pattern. Snap judgment at each level is more useful than deliberation.
- If all 5 horizons agree, proceed. If they disagree, the tension is the decision — name it.
- Legacy horizon (20+ years) is often ignored. Include it, even if you feel silly — it surfaces what you actually value.
- Most people over-weight 10 weeks (what's painful now) and under-weight 10 months (where the compound starts).
- For reversible decisions, favor the 10-day + 10-week horizons. For irreversible, weight 10-year + legacy.
- Run this after an emotional trigger has passed. Acute frustration massively distorts all horizons.
Customization tips
- Write each horizon sentence in under 10 seconds. Snap judgment reveals what deliberation will rationalize.
- If you notice yourself changing an answer after writing it — that's important data. Note what pulled you.
- For highly reversible decisions, run only the 10-day and 10-week horizons. Full framework is overkill.
- Revisit the framework 30 days after a decision. Did your 10-week prediction hold? Calibrates your future horizon-intuition.
- When partnering decisions (marriage, co-founder), run this WITH the partner. Compare each other's 5 sentences. Mismatches are the real conversation.
Variants
Career Horizon Mode
Specifically for career decisions where short-term pain and long-term vision conflict.
Parent / Kid-Raising Mode
Horizons relevant to parenting decisions — short-term ease vs. long-term outcome for the child.
Health Horizon Mode
For health decisions where 10-year and 20-year horizons dominate 10-day feel.
Frequently asked questions
How do I use the Time Horizon Decision Framework prompt?
Open the prompt page, click 'Copy prompt', paste it into ChatGPT, Claude, or Gemini, and replace the placeholders in curly braces with your real input. The prompt is also launchable directly in each model with one click.
Which AI model works best with Time Horizon Decision Framework?
Claude Sonnet 4.5 or any mid-tier. Multi-horizon reasoning works well with medium complexity.
Can I customize the Time Horizon Decision Framework prompt for my use case?
Yes — every Promptolis Original is designed to be customized. Key levers: Write the one-sentence answer at each horizon BEFORE looking at the pattern. Snap judgment at each level is more useful than deliberation.; If all 5 horizons agree, proceed. If they disagree, the tension is the decision — name it.
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