About

Fundamental Density Theory is developed by Manuel Alfaro. This site presents the theory through its locked core and the papers that apply it, and lets the work speak for itself.

The mark

The mark is the one image associated with the author and with FDT. There is no portrait and no biography here: the theory, the papers and the figures are the record.

The core this site follows

v6.0 17 October 2026

Every page follows the locked core, version 6.0 of 17 October 2026: the definitions 0.1 to 0.8, the invariants I-⁠1 to I-⁠7, the P anchors, the register O-⁠1 to O-⁠15 and the Use rules. Pages cite the core by address, so a statement on any page can be traced to the clause that carries it.

The applications accept the measured record of each experiment in full. Where the core reads that record differently from the standard account, the page says so in two sentences, names the clause, and ends with the convergence statement: the map by which FDT recovers the same data.

Reading the figures

0.3a The colour code

One colour code runs through every figure. Cobalt marks α below ½: the general-relativistic regime, the spacetime phase. Brass marks α above ½: the quantum-mechanical regime, the matter phase. Grey marks the seam at α = ½.

Measured values are drawn as data, with their printed uncertainties. Where a figure shows a shape the papers do not print, the caption calls it schematic. Every figure runs in your browser; nothing you do with it leaves the page.

This site

Colophon

The site is static: no cookies, no analytics, no requests to any other server. Text and mathematics are set in STIX Two, the interface in Barlow, both under the SIL Open Font License and served from this domain. Every figure is drawn live in the browser from the numbers the papers print.