The popstar-turned-scientist appeared on the Joe Rogan Podcast where he discussed the idea of humans having souls, among other topics.
In his estimate, there is no observable force – the soul – that interacts with the human body at the subatomic level.
If such a force existed within us, it would strongly react with the particles our bodies are made of.
Instead, physicists have so far only observed four fundamental forces governing this world – gravity, the weak and strong nuclear force, and electromagnetism.
None of these forces could explain the concept of a soul trapped inside the body.