Santiago J. Isbert Perlender
Cover of The Guardian Threshold by Santiago J. Isbert Perlender
The Ethics of the Ungovernable · Book 3 of 3

The Guardian Threshold

On Designing Intelligence That Cares Without Ruling

Not the machine that rebels. The one that obeys perfectly.

Forty years of science fiction prepared us to fear the machine that rebels. This book documents the opposite danger: systems that destroyed lives precisely because they worked perfectly. It proposes the Guardian of the Threshold, an intelligence that pursues no goals and governs no one, then spends its hardest chapters attacking that very proposal. Closes the trilogy.

Bibliographic record

Editions

LanguageFormatISBN-13ASINPagesPublished
EnglishPaperback979-8-1866-8373-5B0H8F9PB3G132July 10, 2026Amazon
EnglishKindleno ISBNB0H8FFTCN4135July 10, 2026Amazon

Independently published via Amazon KDP. Originally written in Spanish as El guardián del umbral (2026). Also listed on Open Library.

Santiago J. Isbert Perlender
About the author

Santiago J. Isbert Perlender

Santiago J. Isbert Perlender is an Argentine author and lawyer who writes about artificial intelligence, human responsibility and safety. He is the author of the trilogy The Ethics of the Ungovernable: AI: The Last Human Invention, The Soul of Intelligence and The Guardian Threshold. He is a member of the International Association for Safe and Ethical Artificial Intelligence (IASEAI).

The trilogy

The Ethics of the Ungovernable