But, what is Time?
- Author
- Chetan Pandey
- Published
- Tue 21 Jul 2020
- Episode Link
- https://podcasters.spotify.com/pod/show/chetan-pandey8/episodes/But--what-is-Time-eh1ppa
In this episode, we discuss the idea of time in physics, inspired by the concept in the movie, Arrival. We ramble about general covariance in relativity, choosing space-like hypersurfaces in cosmology, the metric signature and how despite its supposed arbitrariness, the time co-ordinate stands out.
