Brian Greene Sean Carroll ((link)) Jun 2026

Despite their different theoretical leanings, the two frequently collaborate on public science outreach:

When you search for debates between , you often find clips where Greene calls Many-Worlds "profligate" and philosophically troubling, while Carroll calls the string landscape "an excuse for a lack of predictive power." brian greene sean carroll

(Caltech, Something Deeply Hidden ) rejects the need for extra dimensions to explain quantum weirdness. He’s the most forceful advocate of the Many-Worlds Interpretation of quantum mechanics. Every quantum measurement doesn’t collapse reality into one outcome—it splits the universe into parallel branches. There’s a version of you reading this sentence, and another where you stopped at the headline. Despite their different theoretical leanings