📈 Uninsurable coastal property gets repriced down
Record ocean heat drives more Otis-style events, reinsurance markets harden and pass rate increases through to every property owner. Coastal real estate is only worth its current mark because it is insurable, so as premiums become unaffordable owners are forced to sell and values get written down — a multi-trillion-dollar loss that eventually lands on the federal government.
also touching these tickers, same direction: LA fire rebuild stalls for years, not months 15 (ITB)
⚖ Why this verdict
fully deterministic — evaluate.py replays this from daily closes; nothing below is editable or hand-set
- Window: 2023-10-27 → 2024-10-27 — first mention + 12-month horizon, then the window locks.
- The call: ▼ SHORT LEN (primary play). LEN rose 69.1% over the window → direction-adjusted R = -69.1% (the call lost money).
- Benchmark: holding SPY over the same window returned +42.9%
→ α = -69.1 − (+42.9) = -112.0%
— what this call made or lost against just owning the index. This is the number the verdict uses.
Stock-selection read: -26.2% — did LEN move the predicted way relative to the market. The two only differ on a SHORT: this call was right about direction relative to the index but still cost money versus holding it.
- Rule fired:
· HIT — R ≥ +10% AND α ≥ +5· PARTIAL — R ≥ +5% OR α ≥ 0▶ MISS — everything else
- Credit: supporters of a MISS earn 0 each, opposers the inverse — this feeds the scoreboard weights. supported: Chamath, Friedberg, Sacks
Conviction timeline
bands: green ≥ 65 · watch ≥ 45 · ember ≥ 15
Plays vs SPY · % since first mention (2023-10-27)
Plays
| expression | symbol | kind | relevance | rationale |
|---|---|---|---|---|
| ▼ SHORT | LEN | stock | PRIMARY | largest Florida/coastal homebuilder — insurance affordability is a direct input to coastal home demand and price |
| ▼ SHORT | ITB | etf | adjacent | US homebuilders broadly, levered to coastal-market demand and home values |
Mention log
“there's going to be a real economic cost to bear on the order of several trillion dollars over time because someone has to underwrite that real estate ... it actually translates economically through the reinsurance and insurance markets into the real estate markets fairly quickly”
“So you can kind of think about Florida state's re-insurance thing being effectively bankrupt. It doesn't really have the capacity to underwrite the insurance anymore. So the real question for everyone is, is the federal government going to have to step in and start to support the price of homes?”
Who built this conviction
each voice's total force on the score — supports and opposes from every mention, weighted exactly as the replay applied them · share = % of all mention-driven movement
⏳ decay drained -55.8 over the idea's life — that's time passing, attributed to no one
Score events
| episode | kind | Δ | after | note |
|---|---|---|---|---|
| E151 2023-10-27 | init | +36.4 | 36.4 | E151 born by Friedberg (explicit_prediction x3) [w=0.87] |
| E151 2023-10-27 | reinforce | +12.0 | 48.4 | E151 Chamath support x2 (new voice) [w=0.84] |
| E152 2023-11-03 | decay | -1.9 | 46.5 | E152 silent |
| E156 2023-12-08 | decay | -1.9 | 44.6 | E156 silent |
| E157 2023-12-16 | decay | -1.8 | 42.8 | E157 silent |
| E158 2023-12-23 | decay | -1.7 | 41.1 | E158 silent |
| E159 2023-12-29 | decay | -1.6 | 39.5 | E159 silent |
| E160 2024-01-06 | decay | -1.6 | 37.9 | E160 silent |
| E161 2024-01-13 | decay | -1.5 | 36.4 | E161 silent |
| E162 2024-01-19 | decay | -1.5 | 34.9 | E162 silent |
| E163 2024-01-26 | reinforce | +8.5 | 43.4 | E163 Friedberg support x2 [w=0.87] |
| E163 2024-01-26 | reinforce | +7.1 | 50.5 | E163 Chamath support x2 [w=0.84] |
| E164 2024-02-02 | decay | -2.0 | 48.5 | E164 silent |
| E165 2024-02-09 | decay | -1.9 | 46.5 | E165 silent |
| E166 2024-02-16 | decay | -1.9 | 44.7 | E166 silent |
| E167 2024-02-23 | decay | -1.8 | 42.9 | E167 silent |
| E168 2024-03-01 | decay | -1.7 | 41.2 | E168 silent |
| E169 2024-03-08 | decay | -1.6 | 39.5 | E169 silent |
| E170 2024-03-15 | decay | -1.6 | 37.9 | E170 silent |
| E171 2024-03-22 | decay | -1.5 | 36.4 | E171 silent |
| E172 2024-03-29 | decay | -1.5 | 35.0 | E172 silent |
| E173 2024-04-05 | decay | -1.4 | 33.6 | E173 silent |
| E174 2024-04-12 | decay | -1.3 | 32.2 | E174 silent |
| E175 2024-04-19 | decay | -1.3 | 30.9 | E175 silent |
| E176 2024-04-26 | decay | -1.2 | 29.7 | E176 silent |
| E177 2024-05-03 | decay | -1.2 | 28.5 | E177 silent |
| E178 2024-05-10 | decay | -1.1 | 27.4 | E178 silent |
| E179 2024-05-17 | decay | -1.1 | 26.3 | E179 silent |
| E180 2024-05-24 | decay | -1.1 | 25.2 | E180 silent |
| E181 2024-05-31 | decay | -1.0 | 24.2 | E181 silent |
| E182 2024-06-07 | decay | -1.0 | 23.2 | E182 silent |
| E183 2024-06-14 | decay | -0.9 | 22.3 | E183 silent |
| E184 2024-06-20 | decay | -0.9 | 21.4 | E184 silent |
| E185 2024-06-29 | decay | -0.9 | 20.6 | E185 silent |
| E186 2024-07-04 | decay | -0.8 | 19.7 | E186 silent |
| E187 2024-07-12 | decay | -0.8 | 19.0 | E187 silent |
| E188 2024-07-19 | decay | -0.8 | 18.2 | E188 silent |
| E189 2024-07-26 | decay | -0.7 | 17.5 | E189 silent |
| E190 2024-08-02 | decay | -0.7 | 16.8 | E190 silent |
| E191 2024-08-09 | decay | -0.7 | 16.1 | E191 silent |
| E192 2024-08-16 | decay | -0.6 | 15.5 | E192 silent |
| E193 2024-08-23 | decay | -0.6 | 14.8 | E193 silent |
| E194 2024-08-30 | decay | -0.6 | 14.2 | E194 silent |
| E195 2024-09-06 | decay | -0.6 | 13.7 | E195 silent |
| E196 2024-09-20 | decay | -0.5 | 13.1 | E196 silent |
| E197 2024-09-27 | decay | -0.5 | 12.6 | E197 silent |
| E198 2024-10-03 | decay | -0.5 | 12.1 | E198 silent |
| E199 2024-10-11 | reinforce | +13.7 | 25.8 | E199 Friedberg support x3 [w=0.87] |
| E199 2024-10-11 | reinforce | +11.2 | 37.0 | E199 Chamath support x3 [w=0.84] |
| E199 2024-10-11 | reinforce | +12.6 | 49.5 | E199 Sacks support x2 (new voice) [w=0.89] |
| E200 2024-10-18 | decay | -2.0 | 47.6 | E200 silent |
| E201 2024-10-25 | decay | -1.9 | 45.7 | E201 silent |