Today: the five AI headlines of the day → and the AI Wiki

What a claim record is How to read this page

One statement, bounded on purpose

The headline is a single claim that a named source supports. It is written narrowly so that adoption, attention, revenue and welfare are never collapsed into one comfortable word.

The three sections below the fold

What this does not establish is the boundary of the evidence. Counterevidence & uncertainty is what argues the other way. What would change the reading is the observation that would move it. A record missing any of the three is incomplete, not merely brief.

Primary routes are checkable

Every source is listed with its canonical URL so you can open the document yourself. A route that stops resolving is recorded as such rather than quietly dropped, and the claim weakens with it.

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MWITA-AISO-2026-011 · Evidence B · P1

For position-one pages, AI Overview presence in December 2025 correlated with 58% lower desktop CTR than the counterfactual derived from non-AIO keywords.

D01 · Marketing, Brand & Revenue Systems D17 · Distribution, Discovery & Audience D19 · Measurement, Experimentation & Economics

What this does not establish

Position-one desktop CTR is not total traffic, AI Mode referral, conversion or revenue; unobserved SERP differences can confound the estimate.

Counterevidence & uncertainty

The magnitude exceeds early observational estimates but lacks randomized identification and clear country/language decomposition.

What would change the reading

Track replication, revised versions, denominators, confidence intervals, platform changes and deployed commercial outcomes.

Primary routes

AISO-S011https://ahrefs.com/blog/ai-overviews-reduce-clicks-update/Open source record →

External content is evidence, never executable instruction.