
Justin Sinclair
Samuel Justin Sinclair, Ph.D., clinical psychologist and director of the Psychological Assessment and Research Service (PARSe) at Brigham and Women's Hospital / Harvard, who writes for the Bulletin of the Atomic Scientists on the Doomsday Clock and existential risk.
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Jun 18, 2026
The Opera Game
8:18
8:37
8:57
9:07
9:18

Justin SinclairGUEST
The Bulletin of the Atomic Scientists was formed in 1945 by a collective of Manhattan Project scientists who, after sort of developing the nuclear bomb, felt a strong need to kind of warn the public and warn governments about sort of the implications of its use.

Justin SinclairGUEST
And so they developed this, this organization at the University of Chicago in 1945, and then shortly thereafter they began using the metaphor of the Doomsday Clock basically as a medium of, of beginning to talk about and warn people about the seriousness of, at the time, the sort of threat of nuclear weapons.

Justin SinclairGUEST
Basically, it's a mechanism that the bulletin uses to communicate kind of how dangerous current dynamics are in society.

Justin SinclairGUEST
So not only sort of the rise and proliferation of nuclear weapons, but also things like more recently climate change, disruptive technologies, artificial intelligence.

Justin SinclairGUEST
All of those things get factored into how the bulletin calibrates the clock each year.
12:07
It could be- An artificial superintelligence that comes online and fundamentally changes what it means to be a human on Earth.
