Prediction markets and specialist publishing — forecast notes As of 21 October 2026 These are the five exploratory Noah judgement forecasts supplied with the article. Ranges describe model uncertainty, not demonstrated empirical calibration. The probabilities are unchanged. None estimates full industry adoption or guarantees eventual success. Public-disclosure and published-evaluation targets concern public proof, not all private outcomes. F01 By 2027-10-21, will at least one US- or UK-based specialist publisher have operated an owned forecasting community containing at least 25 distinct forecast questions, 10 publicly settled results and persistent participant-level scoring or a leaderboard? A qualifying publisher must have published original specialist journalism at least weekly for the 12 months before launch and must not primarily be a prediction-market operator. Qualifying outcome: YES if, by 2027-10-21, a qualifying publisher has operated an owned forecasting community meeting all three thresholds: 25 distinct questions, 10 publicly settled results and persistent participant-level scoring or a leaderboard. Live and archived publisher product pages may verify operation. Non-qualifying outcome: NO if, by 2027-10-21, no qualifying publisher has operated an owned forecasting community meeting all three thresholds, including if publishers merely publish polls, odds or isolated forecasts without the required settled archive and participant scoring. Canonical YES estimate: 28%. Estimator uncertainty interval: 12% to 52%. Displayed NO complement: 72%. Run reference: b11f07406b6d67b474997c51695937d586e0c6a9cda8514b3cfbf7c4757c8868. F02 By 2029-10-21, will at least one US- or UK-based specialist publisher have operated an owned forecasting community containing at least 25 distinct forecast questions, 10 publicly settled results and persistent participant-level scoring or a leaderboard? A qualifying publisher must have published original specialist journalism at least weekly for the 12 months before launch and must not primarily be a prediction-market operator. Qualifying outcome: YES if, by 2029-10-21, a qualifying publisher has operated an owned forecasting community meeting all three thresholds: 25 distinct questions, 10 publicly settled results and persistent participant-level scoring or a leaderboard. Live and archived publisher product pages may verify operation. Non-qualifying outcome: NO if, by 2029-10-21, no qualifying publisher has operated an owned forecasting community meeting all three thresholds, including if publishers merely publish polls, odds or isolated forecasts without the required settled archive and participant scoring. Canonical YES estimate: 44%. Estimator uncertainty interval: 20% to 70%. Displayed NO complement: 56%. Run reference: 5d514a977ea733b0dbb4c1e5f9d3d41534effd439432bfd21a0f9f40c050573e. F03 By 2027-12-31, will at least one US- or UK-based publisher launch operational real-money event-contract access inside a publisher-owned website or app through a locally lawful, licensed or regulated market operator? The publisher must produce original journalism and must not itself primarily be a betting or prediction-market operator. Qualifying outcome: YES if, by 2027-12-31, eligible users can place real-money event-contract trades from within a qualifying publisher-owned website or app through a locally lawful, licensed or regulated operator; a link that sends users to a separate operator product is insufficient. Non-qualifying outcome: NO if, by 2027-12-31, no qualifying publisher has launched such operational in-product access, including where partnerships are announced but only provide odds, editorial content, affiliate links, waitlists or redirection to an external operator. Canonical YES estimate: 32%. Estimator uncertainty interval: 14% to 55%. Displayed NO complement: 68%. Run reference: 93ef143d3346e560813d2abdf8e1c1bfc02a189b07b18e2e9e987e35978b6c1b. F04 By 2028-12-31, will a publisher publicly disclose both annual revenue and positive contribution margin directly attributable to a licensed prediction-market or event-contract participation partnership? Qualifying outcome: YES if, by 2028-12-31, a publisher releases a public financial report, filing, investor presentation or comparably attributable statement giving a currency-denominated annual revenue figure and stating or quantifying positive contribution margin from a licensed prediction-market or event-contract participation partnership. Non-qualifying outcome: NO if, by 2028-12-31, no publisher has made that public disclosure, including where a partnership, audience growth, trading volume, gross commissions or revenue is reported without both attributable annual revenue and positive contribution margin. Canonical YES estimate: 24%. Estimator uncertainty interval: 9% to 43%. Displayed NO complement: 76%. Run reference: c259a0071c87095a18ddf8721e12bb196d603702a500b2639ca1a09d93886cfb. F05 By 2029-12-31, will a public, independently reproducible evaluation find that a specialist publisher-affiliated forecasting crowd achieved a lower mean Brier score than a clearly defined pre-outcome baseline across at least 100 binary questions whose forecasts were recorded before resolution? Qualifying outcome: YES if, by 2029-12-31, a publisher, academic team or independent evaluator publicly releases sufficient question-level forecasts, outcomes and methodology to reproduce a lower mean Brier score for a specialist publisher-affiliated crowd than a clearly defined pre-outcome baseline across at least 100 binary questions. Non-qualifying outcome: NO if, by 2029-12-31, no such reproducible evaluation has been published, including if claims rely only on engagement, trading volume, selected successes, fewer than 100 questions or a baseline created after outcomes were known. Canonical YES estimate: 36%. Estimator uncertainty interval: 14% to 62%. Displayed NO complement: 64%. Run reference: 38907e4d7fa5e5b590f26e5fc23bd9d86c662921048e0644614221d994dc686d.