But What Is TIME?

What is time and does it really flow? In this video, we explore the nature of time from Newton’s universal cosmic clock to Einstein’s relativity, proper time, gravitational time dilation, entropy, the arrow of time, the low-entropy beginning of the universe, and the possibility that time may not be fundamental at all. Why can we remember the past but not the future? Why do broken objects never spontaneously reassemble? Why did the universe begin in such a special low-entropy state? And if absolutely nothing changed, would time still pass? Physics has transformed our understanding of time. But its deepest nature remains one of the greatest unsolved questions about reality. Chapters: 00:00 If the Universe Stopped Changing 01:27 Measuring the Invisible 03:16 Newton’s Cosmic Clock 05:18 When Light Broke Time 08:53 When Gravity Pulls on Time 11:29Why Can’t We Unbreak an Egg? 12:54 Entropy Is Not Enough 15:15 The Mystery at the Beginning 16:56 What If Time Is Not Fundamental? 19:38 Does Time Really Flow? For more videos, subscribe to the YouTube channel :    / @mrphysik   🎬 Making-of I code the Animations in Python by using this amazing library: https://www.manim.community/ (initially developed by / 3blue1brown ) ☕ If you want to buy me a coffee: https://ko-fi.com/mrphysik Musics in this video: Out There - Out To The World Waves of Time - Amber Glow Axon Terminal - Out To The World #physics #time #spacetime