I saw this chap being interviewed on BBC tv this morning. I tracked down his recent article written for the UN and read it this afternoon. I recommend it.
He works at the Centre for Study of Existential Risk (University of Cambridge, UK);
https://www.cser.ac.uk/team/tom-cernev/ . It is worth exploring the Centre's website. It has a large number of members. Among the founders, there is a world-renowned astronomer and a well-known philosopher. The advisory board includes some AI people and other scientists, one of whom does complexity studies in economics. It was sad not to see more people engaged with cybernetics and systems thinking, or the social sciences.
I have sent Thomas a brief message.