Cycle on Sep 21, 2026

I'll start this research cycle by reviewing the open threads and prior findings, then gather fresh evidence on the wealth tax feasibility question.

I have 5 open watches (mostly Washington/California ballot measures with November 2026 and September 2026 triggers — none fired yet as of Sept 21) and 6 standing findings. Now let me gather fresh evidence on developments since the last cycle (Sept 14).

Strong material — a new PPIC poll, a Nobel laureate letter, dueling countermeasures, and dueling revenue studies. Let me fetch the primary sources: the Nobel letter PDF, the methodological critique, and the poll coverage, plus check Washington developments.

Washington has significant new developments: a 4-4 WA Supreme Court split on I-645 ballot language, a Cygnal poll showing 57% support for repeal, and heavy campaign spending. Let me pull the Hoover capital-flight study and check federal/European developments.

The Hoover study gives me the key counter-estimate ($40B vs $100B, -$25B net NPV) with its methodology. Now let me check for European developments and verify the Nobel letter's striking venture-capital claim.

The VC claim has an interesting twist — the LA Times reports ~90% of US VC went to California in 2026, but driven by just two AI mega-rounds (Anthropic, OpenAI). I also spotted a Netherlands retreat from an unrealized-gains tax — directly relevant to administrability. Let me fetch that and check Hungary's new proposal.

The Netherlands story is a major administrability data point — a passed mark-to-market bill dying in the Senate, with the Dutch Supreme Court's "Christmas ruling" precedent. Hungary is a genuinely new EU wealth tax proposal. Let me get the federal-politics angle before writing up findings.

I have strong material on California, Washington, the Netherlands, and federal politics. Let me get a fetchable source for the Hungary proposal and pull the macro backdrop for the fiscal context.

I now have comprehensive evidence across all fronts. Time to write the findings. First, the major California update — the polling, the dueling-measures nullification mechanism, and the three-way revenue-estimate battle.

Let me write that properly now.

California note updated. Now the Netherlands mark-to-market retreat (new subject) and the Washington update, in parallel.

Both written. Now the federal-proposals update (Newsom's national pivot) and the new-proposals note (Hungary + European reversal signals).

All findings written. Now registering the forward-looking watches and the open investigation thread this cycle surfaced.

The watch registrations succeeded but the thread kind was rejected. Let me retry with kind `question`.

The cycle is complete. Here's a summary of what this research cycle found: ## Cycle summary — Wealth tax feasibility (Sept 21, 2026) **Five findings written** (three updates to standing notes, two new): 1. **California Prop 40 endgame** *(updated)* — The PPIC poll (fielded Sept 4–10) has Prop 40 at 52–46, but the billionaire-backed countermeasures Prop 41 (51–44) and Prop 42 (54–43) also lead, and either voids the tax if it out-polls it. Polymarket prices passage at just ~29%. The revenue fight is now three-cornered: proponents' **$100B** (Nobel letter, Sept 19), Hoover's **$40B with negative $25B NPV** (six public departures removed $536B, ~30% of the base), and the Independent Institute's methodological attack on the Saez-Zucman incidence assumptions underneath it all. 2. **Netherlands abandons mark-to-market** *(new)* — The strongest new administrability evidence: the 36% unrealized-gains tax that passed the Dutch House in February died in the Senate and was formally buried in the Sept 15 Budget Day Tax Plan, pivoting to a sale-based tax not before 2029 (possibly 2032), at ~€3B/yr foregone. No European country taxes recurring unrealized gains; the Dutch Supreme Court's 2021 "Christmas ruling" already rejected notional taxation as a property-rights violation. 3. **Washington I-645** *(updated)* — WA Supreme Court split 4–4 (one justice ill) on ballot language; repeal is outspent $7.8M to $1.3M but leads in polling (Cygnal: 57%); the Culliton constitutional challenge remains open; the Sept 30 ERFC forecast is the next scoring test. 4. **Federal** *(updated)* — Newsom pivoted from opposing Prop 40 to pitching a *national* billionaire tax as a 2028 plank, with Warren echoing "federal, not state" — the elite convergence itself is evidence on where the feasibility constraints bind. 5. **Hungary + the reversal wave** *(new)* — The first new EU wealth tax proposal (1%+ above ~$3.1M, from 2027, claimed 300–600B forint/yr on no published base), alongside Sweden's re-introduction debate and Norway's own commission recommending cuts. **Registered:** 3 new watches (Hungary bill, Dutch spring 2027 proposal, NY Albany bills), 1 investigation thread (the residency out-migration dispute underpinning the $100B-vs-$40B gap). No watches fired this cycle — the ERFC forecast (Sept 30) and both November 3 votes are still ahead.

The research cycle is complete. All findings are persisted under the topic, the new watches and the investigation thread are registered, and the cycle closed cleanly. The empirical picture this cycle sharpened considerably: the feasibility fight is now running live in three jurisdictions at once — California's dueling-ballot nullification mechanism, Washington's repeal vote and Culliton litigation, and the Netherlands' abandoned mark-to-market regime — while Hungary becomes the cleanest test yet of whether political will can overcome the administrative and mobility constraints that ended the European wealth taxes. The next hard data points land September 30 (WA ERFC forecast) and November 3 (both votes).