All research papers © 2026 John & luppiter Group. Licensed under CC BY-NC-ND 4.0. Some papers are also archived with DOIs on Zenodo (CERN). Science papers are independent preprints and have not been peer reviewed.
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DCF Modeler

Value a stock on EPS or free cash flow per share with Bear, Base, and Bull scenarios, an exit-multiple terminal value, and a Monte Carlo range. Now free, along with our other calculators.

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Finance Research

Dividend Study

An empirical study of 5,106 ex-dividend events across 80 S&P 500 stocks (2010 to 2025). Measured raw, prices open about 81% of the dividend lower; once the market's own move is correctly backed out, the average drop is roughly the full dividend. Full bibliography included.

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Finance Research

RSI Study

A backtest of four RSI strategies across 100 U.S. stocks from 1962 to 2026. Oversold signals produced positive average trades, but the tests cannot separate RSI timing from the upward drift of a survivor-only universe, and stock by stock every strategy lagged buy-and-hold because capital sat idle between signals. Full bibliography included.

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Science Preprint

Antimatter Report

Asks whether antimatter could carry negative gravitational mass and explain the baryon asymmetry, and finds that route effectively excluded by the 2023 ALPHA-g result. The CPT-symmetric universe of Boyle, Finn, and Turok is treated as a separate idea. 64 citations.

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Read Paper ↓ PDF DOI: 10.5281/zenodo.19445820
Science Preprint

Gravitational Centrifuge Power Generation

Can the gravitational pull between the Earth, Moon, and Sun drive rotating machinery to make electricity? Derives tidal forces, gravity-gradient torques, and tether dynamics, and finds that only tidal power plants tap a sustained flow, while orbital schemes yield only one-time energy or recover orbital energy supplied at launch. 54 citations.

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Read Paper ↓ PDF DOI: 10.5281/zenodo.19445822
Cosmology & History · Working Draft

The Historical Filter

Technological civilization may be rare because history is. Humanity invented farming, cities, and writing again and again, but science and industry only once. Covers Attila and Hannibal at the gates of Rome, the arithmetic of solitude, and why at the infinite limit no universe is big enough. Work in progress.

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Policy / Economics

The Maternal Investment Act

A policy proposal for escalating per-child tax credits and subsidies for stay-at-home mothers, with historical and economic justification and a full cost estimate. 92 citations.

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