The Passage of Time and the Meaning of Life | Sean Carroll

[@EannaButler]

Sean Carroll knocks it out of the park like few others..

[@edwardlee2794]

Beautiful dr. Sean, After viewing this episode and many more from before, now I realize that within the locality of myself , how simple minded I'm is merely my own entropy at the beginning simple state heading to a higher state of entropy. God forbids, if that allowed to go unchecked, 1 or 2 hundreds years later, I might turn into another version of Einstein in 23rd century. Just some thought, philosophically silly or funny. Thanks for the efforts and keep up the great work.

[@yhfsywfit]

Best 30 minute science video I’ve ever seen

[@cesarjom]

To this day I find Sean Carroll and David Eagleman probably the best communicators of foundational science concepts and this presentation is a perfect example of that!

[@benmoorecomposer9164]

I still struggle with what entropy actually has to do with time, beyond providing a means of keeping track of it. Entropy means "things become more disorganized over time. " But this definition assumes the existence of time from the start and leaves time itself undefined. The explanations of why entropy is always increasing (based on probabilities) and how complexity can arise (in those interim phases) are fascinating for sure. But they avoid my earlier point that time itself is not actually defined. Again, you can't define entropy without assuming that time exists.

[@Walter5850]

I find it interesting that the pockets of complexity emerge on this gradient of low to high entropy. And not only do they emerge, but then the self-preservation gets selected for within that complexity as it is best able to aid the diffusion of energy. These selective pressures will select for those pockets/systems of complexity which use the energy maximally and optimally. This is why the amount of complexity keeps not only rising, but accelerating as well.

[@cyberprompt]

Just had to say it. There is great significance to the passage of time.

[@fabricekahn2815]

a lot of emotion while watching Sean Caroll

[@Rinter6904]

Great, thank you Sean!

[@zubairhumza9308]

What is the probability of this video having no comments?

[@thorn7bush]

3:47 "Astronomers extrapolate the motion of the solar system millions or billions of years." No they don't! The Lyapunov time for the solar system is estimated at 5 million years. After a billion years, differences in initial conditions are magnified exp(200) times, or more than 7 times 10 ^86, which is over 10^20 times the ratio of the size of the universe to the Planck length.

[@buzzwerd8093]

If you start from nothing, from non-existence, then you start from no entropy.

[@MissJewels77]

However, the universe began in a singularity of low entropy or nil quanta. The big bang erupted causing the first generation of high entropy into a field of dark energy that persists in perpetuating the explosion of the universe. Quantum gravity formed causing clusters of particles to combine into light waves, stars, galaxies and eventually the planet from where i post ….