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Causality Is Optional: Rethinking Portfolio Efficiency Through Predictive Lenses

A practical reading of why portfolio efficiency depends less on causal purity than on signal geometry: alignment, ranking, and calibration.

August 3, 2025 · 13 min · Zelina
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Cleaning the Book: How Structural Filtering Sharpens High-Frequency Signals

A sharper reading of order-flow filtration: cleaning the visible book barely improves standing-book imbalance, but filtering the parent orders behind executed trades exposes a clearer directional signal.

August 3, 2025 · 15 min · Zelina
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Curvature in the Jump: Geometrizing Financial Lévy Models

A mechanism-first reading of how information geometry turns Lévy jump models into comparable, estimable, and diagnostically useful financial model spaces.

August 3, 2025 · 17 min · Zelina
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From Charts to Circuits: How TINs Rewire Technical Analysis for the AI Era

A mechanism-first look at Technical Indicator Networks, which turn classical trading indicators into trainable neural architectures without throwing interpretability into the usual black-box bonfire.

August 3, 2025 · 14 min · Zelina
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Quantum Bulls and Tensor Tails: Modeling Financial Time Series with QGANs

A mechanism-first reading of how Wasserstein QGANs may generate synthetic financial time series with distributional realism and partial temporal structure.

August 3, 2025 · 17 min · Zelina
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Shadow Boxing the Market: Option Pricing Without a Safe Haven

A mechanism-first reading of Lévy-driven option pricing when the market has no clean risk-free asset to lean on.

August 3, 2025 · 16 min · Zelina
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Signed, Sealed, Delivered: A Rough Path to Better Volatility Models

A comparison of analytical volatility calibration and signature-based rough-path models, showing where speed, structure, flexibility, and model risk actually trade off.

August 3, 2025 · 15 min · Zelina
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The Fractal Code of Bitcoin: What Entropy Reveals About Market Complexity

Bitcoin’s complexity is not just higher volatility; it is scale-dependent structure that changes how risk, forecasting, and model validation should be read.

August 3, 2025 · 14 min · Zelina
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The Lion Roars in Crypto: How Multi-Agent LLMs Are Taming Market Chaos

MountainLion shows how multi-agent LLM systems can compress crypto research workflows, but its strongest value is interpretability and decision support rather than proven autonomous trading alpha.

August 3, 2025 · 17 min · Zelina
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The Roots of Finance: How Reciprocity Explains Credit, Insurance, and Investment

A mechanism-first reading of finance as extended reciprocity, with implications for AI-agent markets, decentralized trust, and simulation design.

August 3, 2025 · 19 min · Zelina