# How do you know you're not dreaming?

- Institution: TED
- Department: TED-Ed
- Speaker: Daniel Gregory
- Year: 2022
- Level: For everyone
- Language: English
- Subjects: Psychology and the brain, Philosophy, Teaching and learning
- Source: [TED](https://www.ted.com/talks/daniel_gregory_how_do_you_know_you_re_not_dreaming)
- 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)

Bizarre things happen in dreams: you fly, or conjure an all-you-can-eat buffet out of thin air, or get chased by witches through the halls of your school. But the strange things that happen in dreams don't seem strange at the time. So, how do you know you're not in a dream right now? Is there a way to prove that you're awake? Daniel Gregory digs into the philosophical theories of wakefulness. \[Directed by Daniel Stankler, narrated by Addison Anderson, music by Zing Audio\].

## Lectures

1. [How do you know you're not dreaming?](https://invisiblenetwork.ai/learn/ted/daniel_gregory_how_do_you_know_you_re_not_dreaming/14b6beb7d440), 5 min (TED's player)