How to Age Up

How to Keep Time: Time Tips From the Universe

Jan 8, 2024

Perception of time and black holes, shared time and connection, the puzzle of time and its asymmetry, time, disorder, and change.

36:24

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Quick takeaways

Time is unidirectional and we can only move forward into the future, not back into the past.

Black holes reveal the relationship between gravity and time, with time appearing to slow down as an astronaut falls into a black hole from the perspective of an observer far away.

Deep dives

Time as a Unidirectional Force

Time is frustratingly different from space in that it only moves forward. We cannot go back in time, only into the future. This unidirectional nature of time is a significant aspect of our experience.

Time Measurement Through Change and Disorder

01:19

Shared Time Over Distance

01:31

Introduction

2min

Perception of Time and the Role of Black Holes in Understanding It

6min

The Importance of Shared Time and Connection

2min

The Puzzle of Time and its Asymmetry

11min

Time, Disorder, and Change

14min

Time can feel like a subjective experience—different at different points in our lives. It’s also a real, measurable thing. The universe may be too big to fully comprehend, but what we do know could help inform the ways we approach our understanding of ourselves, our purpose, and our time.

Theoretical physicist and black-hole expert Janna Levin explains how the science of time can inspire new thinking and fresh perspectives on a much larger scale.

Music by Rob Smierciak (“Slow Money, Money Time, Guitar Time, Ambient Time”), Gavin Luke (“Time Zones”), Hanna Lindgren (“Everywhere Except Right Here”), and Dylan Sitts (“On the Fritz”).

Write to us at howtopodcast@theatlantic.com.

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How to Age Up

How to Keep Time: Time Tips From the Universe

Podcast summary created with Snipd AI

Quick takeaways

Deep dives

Time as a Unidirectional Force

Black Holes and Time Distortion

The Nature of Time and Change

Time Measurement Through Change and Disorder

Shared Time Over Distance

Remember Everything You Learn from Podcasts