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247_049predictionEnergyAI-timing

Solar PV capped materially less than 100% efficiency by physics

Predictor: Alex Wissner-Gross · ep#247 "Elon Musk vs. Sam Altman, AI Job Loss, and OpenAI's $852B Valuation EP #247" · source

Prior probability
55.0%
Current probability
44.7%
evolves via intake + LBP
Conviction
5/5
Signal quality
B
Resolution
pending
Window
2026-04-30 – 2029-11-30
Edges in / out
9 / 5
Tickers exposed
36

Prediction text

Solar PV capped materially less than 100% efficiency by physics | you're not going to get more than 100% efficiency. In fact, there are physical reasons to think that the the the cap on electricity generation from solar PV is capped at materially less than 100%.

Verbatim quote

From episode "Elon Musk vs. Sam Altman, AI Job Loss, and OpenAI's $852B Valuation EP #247"
you're not going to get more than 100% efficiency. In fact, there are physical reasons to think that the the the cap on electricity generation from solar PV is capped at materially less than 100%.

Predictor: Alex Wissner-Gross

κ + Brier as of 2026-05-22
κ (discount)
0.844
Brier
0.0341
excellent
Hits / Misses
6 / 1
of 11 resolved
Hit rate
54.5%
Calibration plot (stated vs observed)

Evidence about this node from Alex Wissner-Gross is multiplied by κ in /api/intake. Lower κ = less weight; floors at 0.10 (effectively silenced) and caps at 1.00 (full weight).

Reference class

Not linked

This node isn't linked to a reference class. The Bayesian update applies without outside-view blending.

Probability over time

4 prob_history rows
0%25%50%75%100%prior 55%2026-04-302026-05-032026-05-10
intake v2milestone miss sweeplbp propagationreference class assignedlegacy v1prior_prob (analyst seed)current = 44.7%

Milestone chain

Pre-event signals (upstream prereqs + window checkpoints) → resolution event → downstream cascades. Status/dates update from linked nodes; re-derive nightly via scripts/ops/derive_milestones.py.
Leading chain: 6 fired ✓ · 3 pending
  1. 2025-04-30hitLONGi sets perovskite-silicon tandem efficiency record at ~35% (>SQ limit)
    How: LONGi reports certified perovskite-silicon tandem solar cell efficiency of ~34.85% (April 2025), then ~35.0% on 1cm² device, exceeding the Shockley-Queisser single-junction limit of ~33.16%
    Source: https://www.fluxim.com/research-blogs/perovskite-silicon-tandem-pv-record-updatesconf 99%
    Notes: HIT (negative for prediction direction) — tandem cells already broke single-junction SQ limit in 2025. Prediction's 'capped materially less than 100%' is correct in absolute terms but already hedged by tandem topology.
  2. 2026-06-01 → 2027-12-31pendingIndustrial-grade perovskite/silicon tandem deployed at >100MW commercial scale
    How: Industry tracker (BloombergNEF / Wood Mackenzie) confirms ≥100MW of commercial PV deployment using certified perovskite/silicon tandem modules
    Source: https://advanced.onlinelibrary.wiley.com/doi/10.1002/aenm.202504478 — Tandem Takeoff industrial-grade tandem 2026 reviewconf 65%
    Notes: Tests whether the lab record translates to commercial scale, which determines whether the 'physics-capped' framing matters in practice.
  3. 2026-04-30 → 2028-12-31pendingTriple-junction perovskite cell exceeds 36% lab efficiency
    How: NREL Best Research-Cell Efficiency Chart adds an entry for triple-junction perovskite at >36% certified
    Source: NREL Best Research-Cell Efficiency Chartconf 55%
    Notes: Three-junction architecture pushes further past single-junction SQ; tests prediction's claim that physics caps efficiency 'materially less than 100%'.
  4. 2027-01-01 → 2029-11-30pendingSolar PV LCOE remains decoupled from cell-efficiency ceiling
    How: IEA / IRENA report shows utility-scale solar LCOE continues to decline >5%/yr despite efficiency gains being asymptotic, validating that the cap is real but cost decoupling still occurs
    Source: IEA Renewables / IRENA Renewable Cost annual reportsconf 55%
    Notes: Cascade — confirms prediction's underlying message (efficiency is capped, but economics isn't only about efficiency).
  5. 2036-09-06pendingMoon base will exist in 10 years

What if this resolves?

Clamp this prediction TRUE or FALSE and run a counterfactual Gibbs sample. Surfaces the predictions whose marginals shift most under that assumption.
(live posterior: 45%)

Click a button to clamp this prediction and run a Gibbs sample. Returns the predictions whose marginals shift most. ~30s per run; ideal for stress-testing "if X resolves, what else moves?"

Evidence chain

Every probability update with full Bayesian provenance — chronological, latest first
LBP2026-05-10T02:00:02Z44.7%-1.7pp
Network propagation: 46.4% → 44.7%
6-iter LBP, residual 0.00584 · damping 0.5, w_intrinsic 0.5 · method lbp_v3 · run e5c18d29
LBP2026-05-03T02:00:01Z46.4%-2.9pp
Network propagation: 49.3% → 46.4%
6-iter LBP, residual 0.00677 · damping 0.5, w_intrinsic 0.5 · method lbp_v3 · run 1a683ac9
LBP2026-04-30T16:39:51Z49.3%-2.3pp
Network propagation: 51.5% → 49.3%
5-iter LBP, residual 0.00825 · damping 0.5, w_intrinsic 0.5 · method lbp_v2 · run 0c8a4ea3
LBP2026-04-30T02:18:57Z51.5%-3.5pp
Network propagation: 55.0% → 51.5%
5-iter LBP, residual 0.00825 · damping 0.5, w_intrinsic 0.5 · method lbp_v1 · run 592311ef

Network propagation neighbors

Top edges sorted by latest LBP cross-impact
All propagation →

Top incoming (parents)

Edges that influence THIS node's belief

KindNodeTheir probP(c|s=T)P(c|s=F)Δ implied
prereqS_GRID_50GW_2029
50GW grid expansion by Dec 2029
50.0%0.5500.050-0.147
killerTK03
AI Regulatory Moratorium (EU/US Capability Freeze)
10.0%0.0500.550+0.053
prereqSEM_042
2025 will be the definitive year that agentic systems finallKevin Weil
73.8%0.5500.050-0.033
prereq235_038
David Sinclair begins partial epigenetic reprogramming trialPeter Diamandis
74.0%0.5500.050-0.030
killerTK01
AGI Capability Plateau (2026-27 Training Stall)
15.0%0.0500.550+0.028

Top outgoing (children)

Predictions THIS node influences

KindNodeTheir probP(c|s=T)P(c|s=F)Δ implied
prereq246_016
Dragonfly nuclear-powered octicopter arrives at Titan in 203Peter Diamandis
35.6%0.6500.050-0.044
prereq235_030
Ray Kurzweil predicts Longevity Escape Velocity (LEV) by 203Ray Kurzweil
39.2%0.7500.050-0.036
prereq240_036
TEPCO's restarted reactor will support 20% of Japan's electrPeter Diamandis
34.3%0.6500.050-0.030
prereq239_008
Moon base will exist in 10 yearsElon Musk
28.8%0.5500.050-0.019
prereqSEM_034
True artificial general intelligence will be achieved betweeDemis Hassabis
28.7%0.5500.050-0.018

Ticker exposure

36 ticker(s) linked

Beneficiaries (23)

APLDNVDAARMBBAITSMCEVAAISOUNCRWVSITMGTLBGOOGLMETAMRVLMSFTORCLIBMAMZNAVGOBABAAMDSFTBYQCOM

Adverse (6)

ACNCHGGCTSHIBMINFYWNS

Prerequisites (9)

Predictions that must hit first
TypePredTitleDomainLag
prereq235_038David Sinclair begins partial epigenetic reprogramming trials with Life Biosciences in March 2026.Biotech/Longevity
prereqSEM_008Training runs costing $10 billion for a single model will commence sometime in 2025.AI
prereq238_009Recursive self-improvement is already happening now (no longer three years out)AI
prereqSEM_012Nvidia quadrupled chip production output while only doubling human headcount — achieved by deploying AI coding tools (Cursor, Claude Code) across engineering.AI/Manufacturing
prereqSEM_0422025 will be the definitive year that agentic systems finally hit the mainstream.AI/Agents
prereqS_GRID_50GW_202950GW grid expansion by Dec 2029energy_grid_expansion
killerTK14Superbubble Pop (S&P 500 -40%, Moonshot Capital Evaporates)
killerTK01AGI Capability Plateau (2026-27 Training Stall)
killerTK03AI Regulatory Moratorium (EU/US Capability Freeze)

Dependents (5)

Predictions enabled by this
TypePredTitleDomainLag
prereq235_030Ray Kurzweil predicts Longevity Escape Velocity (LEV) by 2033.Biotech/Longevity
prereq246_016Dragonfly nuclear-powered octicopter arrives at Titan in 2034.Space
prereq240_036TEPCO's restarted reactor will support 20% of Japan's electric needs by 2040Energy
prereqSEM_034True artificial general intelligence will be achieved between 2032 and 2042 — 'first we solve AI, then use AI to solve everything else'.AI/AGI
prereq239_008Moon base will exist in 10 yearsSpace

Expected milestones (1)

From Sheet 17 Monitoring Triggers
Expected byDescriptionStatus
2031-03-31[Energy/Regulation 2031-03] [247_049] Solar PV capped materially less than 100% efficiency by physics [231_034] Power constraint won't be a big problem until chip fabs come online and it sudde [241_059] Government will continue unleashinpending

Raw metadata

From Thesis_Timeline_v1.0_FINAL workbook
{
  "nia": false,
  "qty": "<100% efficiency",
  "url": "https://www.youtube.com/watch?v=5ak26W2YNRY",
  "mode": "THESIS",
  "role": "Host",
  "context": "the cap on electricity generation from solar PV is capped at materially less than 100%",
  "verbatim": "you're not going to get more than 100% efficiency. In fact, there are physical reasons to think that the the the cap on electricity generation from solar PV is capped at materially less than 100%.",
  "conv_cues": "physical reasons",
  "direction": "NOT_HAPPEN",
  "timeframe": "Permanent",
  "conv_level": "HIGH",
  "milestones": [
    {
      "kind": "llm_pre_event",
      "label": "LONGi sets perovskite-silicon tandem efficiency record at ~35% (>SQ limit)",
      "notes": "HIT (negative for prediction direction) — tandem cells already broke single-junction SQ limit in 2025. Prediction's 'capped materially less than 100%' is correct in absolute terms but already hedged by tandem topology.",
      "source": "https://www.fluxim.com/research-blogs/perovskite-silicon-tandem-pv-record-updates",
      "status": "hit",
      "weight": 0.4,
      "ordinal": -9,
      "source_id": null,
      "confidence": 0.99,
      "source_url": "https://www.fluxim.com/research-blogs/perovskite-silicon-tandem-pv-record-updates",
      "expected_date": "2025-04-30",
      "observed_date": "2025-04-30",
      "research_origin": "deep_research",
      "measurement_criterion": "LONGi reports certified perovskite-silicon tandem solar cell efficiency of ~34.85% (April 2025), then ~35.0% on 1cm² device, exceeding the Shockley-Queisser single-junction limit of ~33.16%"
    },
    {
      "kind": "prereq",
      "label": "Nvidia quadrupled chip production output while only doubling human headcount — achieved by deploying AI coding tools (Cursor, Claude Code) a",
      "status": "hit",
      "weight": 0.5,
      "ordinal": -8,
      "source_id": "SEM_012",
      "expected_date": "2026-04-29",
      "observed_date": "2026-04-29"
    },
    {
      "kind": "prereq",
      "label": "Training runs costing $10 billion for a single model will commence sometime in 2025.",
      "status": "hit",
      "weight": 0.5,
      "ordinal": -7,
      "source_id": "SEM_008",
      "expected_date": "2026-04-29",
      "observed_date": "2026-04-29"
    },
    {
      "kind": "prereq",
      "label": "2025 will be the definitive year that agentic systems finally hit the mainstream.",
      "status": "hit",
      "weight": 0.5,
      "ordinal": -6,
      "source_id": "SEM_042",
      "expected_date": "2026-04-29",
      "observed_date": "2026-04-29"
    },
    {
      "kind": "prereq",
      "label": "Recursive self-improvement is already happening now (no longer three years out)",
      "status": "hit",
      "weight": 0.5,
      "ordinal": -5,
      "source_id": "238_009",
      "expected_date": "2026-04-29",
      "observed_date": "2026-04-29"
    },
    {
      "kind": "prereq",
      "label": "David Sinclair begins partial epigenetic reprogramming trials with Life Biosciences in March 2026.",
      "status": "hit",
      "weight": 0.5,
      "ordinal": -4,
      "source_id": "235_038",
      "expected_date": "2026-04-29",
      "observed_date": "2026-04-29"
    },
    {
      "kind": "llm_pre_event",
      "label": "Industrial-grade perovskite/silicon tandem deployed at >100MW commercial scale",
      "notes": "Tests whether the lab record translates to commercial scale, which determines whether the 'physics-capped' framing matters in practice.",
      "source": "https://advanced.onlinelibrary.wiley.com/doi/10.1002/aenm.202504478 — Tandem Takeoff industrial-grade tandem 2026 review",
      "status": "pending",
      "weight": 0.4,
      "ordinal": -3,
      "source_id": null,
      "confidence": 0.65,
      "source_url": "https://advanced.onlinelibrary.wiley.com/doi/10.1002/aenm.202504478",
      "expected_date": "2027-03-17",
      "research_origin": "deep_research",
      "expected_date_range": {
        "to": "2027-12
... (truncated)