[17] With William Miller, Arthur Reber and Frantisek Baluska, he co-authored the paper Cellular and Natural Viral Engineering in Cognition-Based Evolution, which was published in the May 2023 issue of Communicative and Integrative Biology.

[23] In 2015, he published Evolution 2.0: Breaking the Deadlock Between Darwin And Design (BenBella Books, Inc., ISBN 978-1-940363-80-6), a publicly accessible account of scientific progress supporting extended evolutionary synthesis.

[24] The book accepts the process of Natural Selection, but based on the work of Barbara McClintock, Lynn Margulis, James A. Shapiro and Denis Noble, rejects the hypothesis that variation arises primarily from random DNA copying errors.

It summarises the argument of Hubert Yockey that DNA transcription and translation are encoding and decoding as defined in information theory expounded by Claude Shannon and not derivable from currently known laws of physics.

[25][non-primary source needed] Marshall has organized a private equity group and created the Evolution 2.0 prize, which is presently a $10 million reward for an Origin Of Information experiment that can be specified as a patentable process.

Submissions will be evaluated by a judging panel consisting of: Marshall was a co-organizer – with Frank H. Laukien, James A. Shapiro, Denis Noble and Henry Heng – of the three-day Cancer and Evolution Symposium in October 2020, and was the facilitator of the third day of that event.