The Archive
Disclosures
Everything that could affect how you read this archive, stated plainly in one place. The short version: the archive earns a little from books it links and from its own titles, and none of it changes what the archive documents. Neutrality is the point; these disclosures exist so you can hold us to it.
Amazon affiliate links
Some links to books on this site are Amazon affiliate links. As an Amazon Associate, The Science of Differentiation earns from qualifying purchases. This does not change the price you pay, and it does not change which books the archive documents or how it describes them: titles are listed and characterized on the same neutral, sourced basis whether or not a purchase would earn a commission. Affiliate links are confined to the books and resource listings; the documentary record, research, and reference pages carry none.
The archive and its books are by the same author
This archive is written under the byline Phoenix Arden. The same author writes the three documentary books this archive references and funnels to — ZENO, The Voice on Ibiza, and Divergence — published by Archive House and available on Kindle Unlimited, from which the author earns royalties. We state this plainly because it is a relationship worth knowing: the archive is not a neutral third party reviewing those books; it is the same documentary project in a different form. The books are held to the same sourcing standard as the site, and the free reference here is written to stand on its own.
The email list
The archive offers an optional corrections & new-documents list: a low-volume email notice when a correction is issued, a primary document is added to the record, or a new reference is published. It is a convenience, not a gate — the public corrections log and the whole reference stay free and open whether or not you subscribe. Subscription is confirmed opt-in; the archive stores no addresses itself and passes your address to its email provider solely to deliver these notices. No address is sold or shared, every email carries a one-click unsubscribe, and the list sets no cookies and loads no third-party trackers. The list funnels only to the archive's own free pages and its documentary books; it never carries affiliate links or paid placement.
Support and independence
The archive is independent. It is not operated, sponsored, endorsed by, or affiliated with Jovian Archive, the IHDS, or any Human Design organization, and it accepts no sponsorship or paid placement — a page whose entire value is that it carries no one's commercial interest will not carry one. If reader support (such as donations) is offered in future, it will be disclosed here, and support of any kind confers no influence over what the archive documents or concludes.
Neutrality
The archive renders no verdict. It documents the public record, attributes every characterization to its source, and lets the reader decide. No revenue arrangement — affiliate, royalty, or otherwise — changes that standard. If you ever find a page that reads as an endorsement or an unsourced claim, that is a defect; please flag it through the corrections page.
See also the full Legal Notices & Terms of Use. Questions: contact. Last reviewed: July 2026.