# The Boltzmann brain paradox

- Institution: TED
- Department: TED-Ed
- Speaker: Fabio Pacucci
- Year: 2022
- Level: For everyone
- Language: English
- Subjects: Physics, Astronomy and space, Psychology and the brain, Teaching and learning
- Source: [TED](https://www.ted.com/talks/fabio_pacucci_the_boltzmann_brain_paradox)
- Licence: [CC BY-NC-ND 4.0](https://creativecommons.org/licenses/by-nc-nd/4.0/) (Non-commercial use only, and no changed versions.)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

How do you know you're a person who has lived your life, rather than a just-formed brain full of artificial memories, momentarily hallucinating a reality that doesn't actually exist? That may sound absurd, but it's kept several generations of top cosmologists up at night. They call it: the Boltzmann brain paradox. Fabio Pacucci explores this mind-numbing thought experiment. \[Directed by Skirmanta Jakaitė, Art Shot, narrated by Addison Anderson, music by Salil Bhayani, cAMP Studio\].

## Lectures

1. [The Boltzmann brain paradox](https://invisiblenetwork.ai/learn/ted/fabio_pacucci_the_boltzmann_brain_paradox/51c8b3570662), 6 min (TED's player)