In 30 seconds
In a short exchange, Elon Musk discusses the simulation hypothesis and recalls getting opposite answers from two experts. His comments are speculation, not evidence that reality is a simulation.
- 1A speculative premiseMusk imagines that uninteresting simulations might be stopped.
- 2Opposite answersHe recalls a physicist and a computer scientist disagreeing.
- 3No settled probabilityMusk says he does not know.
Takeaways
- Musk presents the simulation idea as a possibility.
- He recalls sharply different opinions from two experts.
- The anecdote does not establish a probability or prove the hypothesis.
Read the edited text by chapter
A question about simulated reality
Isaacson asks Musk how convinced he is by the hypothesis.
Elon Musk speculates that if reality were a simulation, an uninteresting simulation might be stopped. He playfully connects that idea to his preference for ambitious projects; the premise is hypothetical.
Walter Isaacson asks how convinced Musk is that people live in a simulation. Musk recalls asking a physicist and a computer scientist who gave opposite answers.
Musk jokes about averaging their answers and says he does not know. The anecdote illustrates disagreement, not a measured probability or evidence that reality is simulated.
More from this channel
53:48EN
The Builders· Oct 29, 2026Mustafa Suleyman on AI Consciousness, Containment, and Human ControlGuest Mustafa Suleyman · Host Walter IsaacsonIn a conversation with Walter Isaacson, Microsoft AI’s CEO explains his disagreement over model welfare and the safeguards he believes increasingly capable systems need.
42:06ENThe Builders· Oct 27, 2026Dario and Daniela Amodei on Building Anthropic, AI Safety, and Human MeaningGuest Dario Amodei, Daniela Amodei · Host Walter IsaacsonThe Anthropic co-founders discuss the roots of their partnership, the challenge of keeping AI systems honest, and the choices facing a world of more capable models.
1:08ENThe Builders· Oct 25, 2026Elon Musk Proposes Competitor Review Before AI Model ReleasesGuest Elon Musk · Host Walter IsaacsonA short exchange with Walter Isaacson about safety coordination.
57:47ENThe Builders· Oct 22, 2026Peter Thiel on AI Acceleration, Global Power, and the Values of Its BuildersGuest Peter Thiel · Host Walter IsaacsonWalter Isaacson challenges Peter Thiel on AI risk, concentrated power, and the moral responsibilities of visionary founders. Thiel argues that stopping progress carries dangers of its own.
0:41ENThe Builders· Oct 21, 2026Elon Musk on Why He Participates in AI Development Despite RiskGuest Elon Musk · Host Walter IsaacsonIn a short exchange, Musk tells Walter Isaacson he hopes participation could influence AI’s direction.
37:14ENThe Builders· Oct 20, 2026Elon Musk on AI Control, Robot Abundance, and His Regrets About DOGEGuest Elon Musk · Host Walter IsaacsonWalter Isaacson asks Elon Musk how humanity can remain safe and find purpose as AI grows more capable, and challenges him on politics, empathy, and the future he is building.