Michio Kaku
Theoretical physicist, co-founder of string field theory, and the rare scientist who can explain the multiverse using a bag of marbles.
Circuit updated May 26, 2026
- Michio Kaku Says We're Probably Not in a Simulation, and He Has 71 Years of Physics to Back It Up
“How could mother nature be so malicious to create a universe at the fundamental level based on hundreds of different kinds of strings vibrating in different directions? Well, it's really just one string.” 2:45
- Michio Kaku Will Not Tell You Whether Aliens Exist, No Matter What You Threaten
“Your brain, your personality, your thoughts are electrical. And when you die, the electricity turns off. There's nothing propelling thinking anymore.” 1:44
Michio Kaku Says We're Probably Not in a Simulation, and He Has 71 Years of Physics to Back It Up
The string theory co-founder visits Diary of a CEO and does something rare: he actually answers the big questions, then politely dismantles one of the internet's favorite cosmic theories.
Michio Kaku Will Not Tell You Whether Aliens Exist, No Matter What You Threaten
The theoretical physicist comes prepared with one answer for every question: maybe.