Sean M. Carroll

Sean M. Carroll (b. 1966) is an American theoretical physicist and philosopher, currently Homewood Professor of Natural Philosophy at Johns Hopkins University (previously at Caltech) and a widely read science communicator through his books and Mindscape podcast.

His technical work spans cosmology, field theory, and the foundations of quantum mechanics, where he is a prominent advocate of the Everettian “many-worlds” interpretation, defended at length in Something Deeply Hidden (2019).

In The Big Picture (2016) he set out the worldview he calls poetic naturalism: there is only one world — the natural, physical world described by science — but many useful, true ways of talking about it, so that concepts like “purpose,” “morality,” and “self” can be real and meaningful as higher-level descriptions without requiring anything beyond physics.

He is an atheist and a careful naturalist. This Atlas includes Carroll as the faithful representative of the mainstream physicalist and skeptical position — the view most working scientists hold. He is a clear, vocal critic of “quantum mysticism”: the popular claim that quantum mechanics shows the mind creates reality, that observation collapses the world through consciousness, or that the Law of Attraction has a physics basis.

Carroll argues these claims misread the measurement problem and the role of the observer, and that quantum theory provides no warrant for mind-over-matter metaphysics. Presented honestly, his importance to the Atlas is precisely as the credible counterweight: where consciousness-first writers invoke physics, Carroll’s poetic naturalism shows how meaning, value, and the felt richness of experience can be fully real without abandoning physicalism. Tier: mainstream science / principled skeptic.