The Three Filters: how to decide when to act before you feel ready
The Three Filters are a decision framework for telling a brave move from a reckless one: check Reversibility, Impact, and Information before you act. If a decision passes all three, the thing stopping you usually isn't facts anymore — it's fear, and fear responds to motion, not analysis. The framework comes from my book F*ck It, Do It, where it carries one premise: act when the cost of deliberation exceeds the value of certainty.
Waiting to feel ready is a losing strategy, because readiness is a consequence of action, not a prerequisite for it. But "just do it" is equally useless advice — a philosophy without guardrails isn't a philosophy, it's a liability. The filters are the guardrails.
Reversibility
Can this be undone?
If yes: act. The downside is bounded, you can course-correct, and the information you gain by moving beats another month of thinking. If no: slow down — one-way doors deserve genuine deliberation. Most decisions are more reversible than they feel; fear is what makes them feel permanent. Jobs can change again. Moves can be moved back. What cannot be reversed is the time spent not deciding.
Impact
Who gets impacted or hurt if this goes wrong?
If the consequences are primarily yours to bear, you're entitled to the risk. If others — especially people who haven't consented to it — carry significant consequences, think harder: include them in the decision, or shrink the move until its failure is survivable for them. One scope note: this is a framework for life and career decisions. If the stakes are seriously physical, medical, or legal, the filter is simpler — bring in the relevant professional first.
Information
Would more information actually change the decision?
If yes, go get that specific piece — with a deadline, so research can't become a hiding place. If no, you're not researching anymore; you're hiding. A useful benchmark: decide at roughly 70% of the information you wish you had. The last 30% comes faster from acting than from waiting.
What if a decision passes all three filters?
Then write down what's actually stopping you. In practice it's rarely the filters — it's the fear of being seen to fail, or the belief that you'll only get one chance. Naming that is the point: you can't argue with a fear you haven't written down. And before any genuinely big move, add one more question, the most important in the book: am I running toward something, or away from something? Toward is almost always right. Away deserves a second look — you'll arrive somewhere different, carrying the same patterns.
When should you NOT act?
When the move is irreversible and the information environment is still shifting. When people who didn't consent would carry the cost. When you're at the bottom of an acute crisis — act to move, to start small things, to reach out; don't act to blow up your whole life in a month. The framework's job isn't to make you bold. It's to make sure that when you are bold, it's a decision and not a reaction.
The Three Filters, the Pre-FIDI Checklist, and the full framework are from F*ck It, Do It by Chadi Nassar. Read the first chapter free.
FAQ
What are the Three Filters?
Reversibility (can it be undone?), Impact (who carries it if it goes wrong?), Information (would more change the decision?) — checked in order before acting on any meaningful decision.
What is FIDI?
"F*ck It, Do It" — the decision to act when the cost of deliberation exceeds the value of certainty. Permission with guardrails, not recklessness.