AI-powered
podcast player
Listen to all your favourite podcasts with AI-powered features
2min chapter
AMA | March 2022
Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas
Reversing the Momentum of the Earth
Reversing the momentum of every object and evolving it forward in time is the same gives you the same kind of answer as just evolving backward in time. The earth moving round the sun is a physical system that has very small numbers of moving parts, so there's no entropy increase or decrease. If you retrodict the past, without a past hypothesis, you predict the opposite of that, which is, you predict radiation flowing from the sun into the past.
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