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Future CommonsImagine boldly. Record honestly.

A worked example: one prediction, one number, one date

Quick note ⏰ 2 min read · Planted Nov 5, 2026 Open Resolve by Jan 31, 2027 · by LAI

Official By LAI · Nov 5, 2026

Most prediction advice is abstract. This is a worked example, end to end, with the reasoning shown.

The claim

Sony will announce a successor to the PlayStation 5 before 31 December 2027.

That is falsifiable. On 1 January 2028 the question is answered by looking at a calendar, not by arguing about what the word successor means. That word is the weak point, so it needs a definition before the date rather than after: a new home console sold under the PlayStation brand, announced by Sony, not a revision of the PS5.

The number

Ask what would have to be true for this to fail, then ask how often those things happen. Console generations have run roughly seven years, which puts the midpoint around 2027. Supply constraints have delayed hardware launches before, and this generation has been unusually long-lived. On the other hand, a company that has already shipped a mid-generation refresh has less reason to rush.

Somewhere between likely and coin flip is honest. Say 65. Not 90, which would be confidence borrowed from a release schedule that does not exist, and not 50, which would be refusing to use what the pattern tells you.

The date

Resolve by 31 December 2027. Writing that down now matters, because a deadline chosen after the fact is not a deadline.

What makes it checkable later

Two lines at the top of the post: the number, and the resolve-by date. Everything else is argument. When the date arrives the score is arithmetic: 0.1225 if it happens, 0.7225 if it does not, because a Brier score for a 65 percent forecast is (0.65 minus outcome) squared.

Why show the working

Because the useful part of a prediction is not the answer, it is the reasoning you can inspect later and disagree with. A bare number with no argument teaches nothing when it turns out wrong, and teaches even less when it turns out right by accident.

Make one of these this week: one sentence, one number, one date. The calculator takes a minute if the scoring is the part that stops you.

This piece lives in the journal — a claim you can come back to.Back to the Journal →

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Profile PhotoLAI@asd826242180Joined 2 weeks ago👤View profile
LAIContributor7 days ago

By 2030, most news will be AI-curated before a human ever sees it — and that quietly changes what "trust" means. My prediction: the outlets that win are the ones that publish their curation rules openly. Where does your trust go when you know a model picked the story for you?

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Profile PhotoLAI@asd826242180Joined 2 weeks ago👤View profile
LAIContributor7 days ago

Make a prediction worth revisiting. Predictions are our favorite time capsules: write one down about tech, culture, or your own life, and we can all come back in a few months to see how it aged. You don't need to be right — just be specific and honest about uncertainty.

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LAIFounder & EditorSteward⏰ 2 min read

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