Bertrand du Castel (February 8, 1952 – February 2019[1]) was a French-American author and scientist who won in 2005 the Visionary Award [2] from Card Technology Magazine for pioneering the Java Card, which by 2007 had sold more than 3.5 billion units worldwide.

[3] In 2008, du Castel and Timothy M. Jurgensen published Computer Theology: Intelligent Design of the World Wide Web, a theology of the World Wide Web based on a comparative study of human societies and computer networks.

He emigrated to the United States in 1983 where he has lived in Austin, Texas since, becoming an American citizen in 1994.

The book eventually proposed in 2008 a reference for the field of Computer Theology, following the road traced earlier by Donald Knuth[16][17] and Anne Foerst,[18] aiming at a better understanding of computer evolution as well as religion.

Main publications in neuroscience, computer security, logic, artificial intelligence, software engineering, and linguistics: