1min snip

Theories of Everything with Curt Jaimungal cover image

The Woman Who Broke Gravity | Claudia de Rham

Theories of Everything with Curt Jaimungal

NOTE

Causality and Velocity: Understanding Limits

The concept of phase velocity and group velocity in physics reveals that superluminal group velocities do not inherently violate causality. While phase velocity can be superluminal and is often viewed as abstract, it is the group velocity that typically conveys information. This distinction becomes crucial when discussing causality, which must be defined within the context of infinite frequency limits of phase velocity. Thus, sending a signal implies a temporal discontinuity, negating the possibility of transmitting information from the beginning of time.

00:00

Get the Snipd
podcast app

Unlock the knowledge in podcasts with the podcast player of the future.
App store bannerPlay store banner

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

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