Eat what you want; vopti tells you how much. Pick your foods, fast food included, lock what you've already had, and it solves the exact grams of everything else so the day lands on your macros. Training volume and cycle tracking included, in English and Spanish.

An educational and analytical finance lab: bond pricing, DCF, portfolio frontiers, options, risk — every formula unit-tested against published worked examples. Educational tooling, never investment advice.

research

Working papers in finance, economics and philosophy. Each one published as a PDF, open access.

Share, adapt, and use it commercially — with attribution. Cite each paper as it appears on its own title page.