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MO Matt O'Dowd Is an astrophysicist and associate professor at Lehman College, City University of New York, with a research background in astronomy and astrophysics from the U...

“In the case of ancestor simulations, upon deciding that we are simulated, we acknowledge that there is no experiment that we can do to prove that we are not. The hypothesis is unfalsifiable. Bostrom himself points out that upon being found out by one of its resident minds, the simulation can be instantly edited or rewound.”

PBS Space Time · Ideas & Essays · November 2026

“In the case of ancestor simulations, upon deciding that we are simulated, we acknowledge that there is no experiment that we can do to prove that we are not. The hypothesis is unfalsifiable. Bostrom himself points out that upon being found out by one of its resident minds, the simulation can be instantly edited or rewound.” — Matt O'Dowd, PBS Space Time

Context

Having laid out Bostrom's ancestor-simulation argument, the host turns to its problems: a simulation that can be edited whenever someone detects a flaw can never be tested from inside.

Transcript

PBS Space Time Around 12:51 into the episode
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