Counterfactual Plausibility Screen¶
Screening test — instantiates Regret-Signal Calibration
Tests whether the "better" path you are regretting was actually available, feasible, and knowable at the decision point — passing only credible alternatives and rejecting hindsight fantasy.
Regret is only trustworthy if the thing you are comparing against could really have been chosen with what you knew then. The Counterfactual Plausibility Screen is the gate that checks exactly that. It takes a claimed better alternative — the path you now wish you had taken — and subjects it to three pass/fail tests before any effort is spent sizing the gap or drawing a lesson: was the option available, was it feasible given real constraints, and was the information distinguishing it knowable at the decision point. An alternative that fails any test is not a valid regret reference; it is hindsight fantasy, and the screen's job is to say so and stop the review from treating an impossible path as a squandered one.
Example¶
An individual investor keeps berating themselves for not buying a stock that later quintupled. The screen runs the tests. Available? Yes — it traded, they had an account. Feasible? Yes — it was well within their capital. Knowable as a good bet at the time? Here it fails: at the decision point it was one of several hundred similar-looking names, with no signal that separated it from the rest — the "obvious" pick is visible only in the rear-view mirror. The screen rejects the counterfactual as hindsight-only. The regret is downgraded from a corrosive "I blew it, I should have seen it" to a defensible "it was genuinely unknowable" — which quiets the self-blame and, importantly, blocks a false lesson ("trust my gut on hot tickers") that would have made the next decision worse.
How it works¶
The screen freezes the decision-time information set using the temporal distance marker — the record of when the choice was made and what was inside the knowledge horizon at that instant — and judges knowability strictly against that frozen set rather than against everything learned since. Each claimed alternative is run through availability, feasibility, and knowability in turn; it must pass all three. Failures are tagged by which test they flunk — impossible (never on the table), infeasible (couldn't actually have been taken), or hindsight-only (obvious only now) — because the three failure types route to very different responses.
Tuning parameters¶
- Knowability strictness — how much foresight to credit the decision-maker with. Strict protects against hindsight bias; too strict whitewashes lapses that were genuinely within reach.
- Availability breadth — how wide a menu of options counts as "on the table," including ones that would have required asking.
- Feasibility assumptions — how much budget, skill, and political capital the alternative is assumed to have needed.
- Evidence bar for rejection — whether ruling an alternative out requires positive proof of un-knowability or just an assertion.
When it helps, and when it misleads¶
Its strength is killing the most toxic regrets before they metastasize: the impossible-alternative comparisons that fuel rumination and unfair blame. By demanding decision-time credibility, it keeps the loop honest about what was really forgone.
Its failure mode is the opposite error — screening too aggressively, dismissing alternatives that genuinely were knowable, and letting a real lesson off the hook under a comfortable "we couldn't have known." That is hindsight bias[n1] running in reverse, weaponized as excuse. The classic misuse is a team that reflexively stamps every forgone option "unforeseeable" to avoid accountability. The guarding discipline is to require positive evidence for a rejection and to distinguish "not knowable" from "we didn't bother to look" — the latter is controllable and must pass the screen, not fail it.
How it implements the components¶
credible_forgone_alternative_test— the three-part availability/feasibility/knowability gate is this test, made procedural.temporal_distance_marker— it fixes the decision-time information horizon so knowability is judged then, not now.outcome_reference_pair— the reference (better-path) side of the pair is precisely what the screen validates or rejects.
It tests a claimed alternative but never creates the running record of options and reasoning; that contemporaneous decision_rationale_trace is kept by its nearest twin, Forgone-Alternative Decision Journal, whose raw record this screen runs on.
Related¶
- Instantiates: Regret-Signal Calibration — the credibility gate that admits only real forgone alternatives into the loop.
- Consumes: Forgone-Alternative Decision Journal — the recorded options and decision-time knowledge it screens.
- Near-twin, different signal: Counterfactual Plausibility Filter applies the same decision-time reachability, feasibility, and knowability gate, but the two route to different downstream signals. This screen feeds a regret-downgrade signal — quieting self-blame when the wished-for path was genuinely unreachable; the filter feeds a near-miss / proximity-magnitude signal — how close a live alternative came.
- Sibling mechanisms: Actionability-Filter After-Action Review · No-Fault Learning Review · Forgone-Alternative Decision Journal · Minimax Regret Matrix · Regret Gap Table · Regret Pre-Mortem · Commitment Reset Memo · Reversal-Window Check · Rumination Timebox
Editorial Notes¶
Form Classification¶
Form family: Assessment, Review & Assurance
Rationale: Counterfactual Plausibility Screen operates as a bounded evaluation of existing evidence or work that produces a finding or disposition because it tests whether the 'better' path you are regretting was actually available, feasible, and knowable at the decision point — passing only credible alternatives and rejecting hindsight fantasy.
Independent corroboration: The frozen evidence defines Counterfactual Plausibility Screen as 'Tests whether the 'better' path you are regretting was actually available, feasible, and knowable at the decision point — passing only credible alternatives and rejecting hindsight fantasy', so its operative form is Assessment, Review & Assurance.
Review outcome: Independent reviewer agreement; high confidence.
Origin Attribution¶
Primary origin: Psychology
Origin pattern: Cross-disciplinary synthesis
Present-day reach: Multi-domain
Rationale: Regret and hindsight-bias research cohered testing whether a now-obvious better option was actually available, feasible, and knowable at decision time.
Related originating lineages:
- Behavioral Economics — Decision analysis supplies the feasible choice and information sets against which opportunity regret is calibrated.
- History & Historiography — Historical counterfactual discipline supplies time-indexed plausibility and rejection of anachronistic knowledge.
Review resolution: Both reviewers agree on the psychological primary and synthetic framing. Behavioral decision analysis and historical minimal-rewrite practice are retained because the screen explicitly tests availability, feasibility, and knowability at the decision point.
Encyclopedia synthesis: The exact catalogued form synthesizes established practice rather than reproducing a single standard historical label.
Review outcome: Reconciled after independent review; high confidence.
Notes¶
[n1] Hindsight bias — the tendency, once an outcome is known, to overestimate how predictable it was beforehand; it inflates regret by making a forgone alternative look far more obviously correct than it was at the moment of choice. ↩