AI-powered
podcast player
Listen to all your favourite podcasts with AI-powered features
5min chapter
The Man of Many Worlds I
Hi-Phi Nation
The Four Dimensions of Time Travel
David lewis thought about worlds as being determined by all the facts that are true in them, past, present and future. A space with no people in it exists before people get to it, and will continue to exist after people move out of it. Every future fact that is true of our world gets to define our world as much as every past fact does. Any alternative fact is only true in an alternate universe. So back to time travel. Time travel is violent and brutal n because it literally takes part of you and just dislocates it,. In a way that's weird but it helps to solve the dreaded grandfather paradox. Now here's another movie we know that doesn't happen
00:00
Transcript
Episode notes
Get the Snipd
podcast app
Unlock the knowledge in podcasts with the podcast player of the future.
AI-powered
Discover
highlights
Listen to the best highlights from the podcasts you love and dive into the full episode
Save any
moment
Hear something you like? Tap your headphones to save it with AI-generated key takeaways
Share
& Export
Send highlights to Twitter, WhatsApp or export them to Notion, Readwise & more
AI-powered
podcast player
Listen to all your favourite podcasts with AI-powered features
Discover
highlights
Listen to the best highlights from the podcasts you love and dive into the full episode