Park: Great company builders balance daily paranoia with long-term religious optimism
Joon Sung Park · The AI Company Simulating the Entire Economy | Simile Co-founder & CEO, Joon Sung Park · Jul 31, 2026 · at 37:25
Joon Sung Park, Co-founder and CEO of AI simulation company Simile, discusses the psychological balance required of successful founders.
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“Actually balancing those two at the same time is quite difficult, because if you are short-term paranoid, then you're likely going to be very pessimistic about your future. And you're, you might be amazing at shorting stocks, but not great as a company builder. If you're religious, you have the opposite problem, which is you're complacent. And then you sort of feel like, ah, we don't have to put everything on the table today. Things will be okay. Balancing those two needs somebody who is broken in some ways. That somehow they found a way to be deeply paranoid, but at the same time, ignore all the paranoia of today to believe that the world is going to be amazing.”
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