Procedural Generation with Wave Function Collapse and Model Synthesis | Unity Devlog

Yay glad you are back! <3

Any evidence that Time is not an abstract? Any logical reason to try and conflate Entropy with Time? PseudoScience or PseudoPhysics perhaps?
If Time is reversible then Entropy should decrease - so there is a Saviour because Maths (a study of abstracts) has found it but can't prove it. Like religion. How cute.

I also read somewhere (I can't recall the book, I think it was "The Collapse of Chaos" or maybe a book by Paul Davies) of the use of simple arithmetic to explain the complication of time reversal. It's used merely as an illustration and not a direct explanation. But if you take a number like 4, you can say 1+3, or 2+2, or 4+0 all egual 4. That would represent the normal arrow of time. But if you reverse it, it becomes difficult to discern from what 4 came from, due to convergence and dynamics. I'm probably not explaining it well, but at the time I found it helpful to picture the problems inherent in actual time reversal.

Chris Nolan: "Hold my beer."

Love the smash-house ending! Epic.

I may be low entropy but my grades weren´t

Welcome back!!!

What a great video!

When the Universe was young, everything was a soup of particles moving around randomly. That is high entropy. How did it ever become low from there? You can't get more unorganized than that.

Because it is theoretically possible to go from high to low entropy, despite being extremely unlikely, I am captivated with the possibility of a 'dead' universe billions of years in the future randomly turning into another singularity and restarting the cycle!

Yay you're back. 👏👍

I'm stoned and this is tripping the shit out of me.

This is one of the best - if not even the best - film to explain entropy and the first 2 laws of thermodynamics to people, who are not scientists in physic, I ever got to see. Beautifull done. Wunderfull performed.

Beautifully explained.

In a way it makes sense the universe was extremely well organized in the beginning. If it hadn't even existed yet, there was nothing about it that could be disorganized, and as it disorganized into more variety, there was opportunity for even more disorganization on a continuous exponential cycle

I haven't come across more wonderful way of explaining the whole idea of entropy so far. Good work!

Great explanation! And that ending 😂 Glad to see you're back!

One of the best videos on the subject of Entropy in YT.

You’re the best!

Bro i wait for your videos ❤️🔥🔥

So glad I found this channel! My mind has been blown so many times

It’s about human population more than CO2. The CO2 trapping solar heat got there because of human population. But that’s the one thing no one says.

THANK YOU SO MUCH! After listening to many explanations of what entropy is land never really still understanding it), I am finally getting a grasp on it.
U did a great job! Thanks

Hey man, your videos are incredibly well made. Learned a lot. I can't believe I've never heard of you until now.

destruction and bethoven you got me

I love this video. This is one of my favorite subjects.

Personally, I don't think the entropy of the universe is increasing. I feel like saying the universe is unstable requires us to postulate a cause for the beginning, which requires us to postulate other universes and their causes and so forth. It's much simpler to just postulate a stable universe.

I think the thing is that we just have observed a lot of low-entropy situations decaying into high-entropy situations and rarely the opposite, so we assume there's a universal trend in that direction. But that could occur if we were born into a time and place that just had that trend.

It's easy to imagine this since most forces (nuclear and gravity) tend to oppose entropy. I know that's hand-wavy, but so is the argument that entropy is universally increasing.

Imagine if the universe consisted of a bunch of masses and the only force were gravity. With all the orbiting, there would be times that the whole cluster of mass would be at a minimum density. After that, we may observe "the universe tends towards entropy." Well, it would until it then started contracting again.

I don't see it as being all that different if you just add several more forces and conditions for those forces and several more types of mass.

I’m not saying you’re wrong about refrigerators using mechanical work to produce a temperature difference. But mostly they way they work is that as you compress the refrigerant, the refrigerant particles are more likely to attract each other and be able to condense into liquids. The attraction of each particle to the forming liquid speeds it up, thus increasing the kinetic energy of the particle (the thermal energy of the system). It’s exactly analogous to the massive increase in kinetic energy and thus thermal energy in the formation of planets and star from the collapse of all that matter into one body, except, of course that planets and stars so get a lot of heat from nuclear reactions.

There is a little bit of kinetic energy imparted to each particle by colliding with the oncoming piston, but this is minimal.

In AC, this compression occurs outside, I believe, then the liquid is allowed to gassify indoors. The reverse occurs. Particles with a lot of kinetic energy (at or above escape velocity) are able to leave the liquid state, but they are slowed down by the attraction to the liquid. This is how the evaporating refrigerant cools.

It’s a similar process with crystallization. Particles are attracted into the crystalline matrix, so of course they are accelerated as they “drop” into place. This creates heat. So in this case, you are decreasing entropy in those particles while creating heat. I guess most would say that entropy is created elsewhere. I don’t see where.

Oh, and I’m reverse, prticles hot enough to escape the crystal matrix are slowed by the attraction of the matrix as they leave it, leading ti cooling. Hence ice can absorb our heat without heating up itself.

So here’s what I don’t get, and maybe you can help me understand. I understand entropy at a conceptual level, but I don’t understand it at a mathematical level.

You showed us a discrete model, but how does it work with continuous phenomena, like positions in space. I’ve thought about entropy in a chemistry context, so I’m also thinking about rotation of bonds, flexing of bonds orbital configurations . . . basically all the ways that matter and energy can be distributed. I know that might not be your background, but I don’t expect a detailed answer in terms of physical chemistry. I’m just giving the context for what I mean when I ask about how we calculate entropy for situations where a discrete model doesn’t work, like protein folding.

For example, where do we get the “S” in the Gibbs free energy equation. Is that just empirical? Do you, or does anyone know of the use of ways to calculate entropy using nondiscrete methods? Maybe it doesn't matter because maybe discrete models are used to understand it, and then for applications, it's just measured. I don't know.

Hey, I've been into geology lately, and I want to learn more about astronomy, so I'm going to go back to your videos and try to understand them better. The Coriolis one broke my mind.

I don't know where you discuss it, but you once talked to me about convection cells in the atmosphere. Since I've been studying geology, I've been thinking a lot about convection cells in the mantle. My theory is that hot spots (like Yellowstone) are actually the centers of convection cells. But I'm not smart enough (or educated enough) to know how to think about the issue. I think it would involve.

Understanding the properties of the magma, and what causes it to cycle in the first place

Some complicated magnetic crap.

Some complicated crap pertaining to the spinning of the globe and Coriolis force and stuff.

Would probably have to account for whatever is causing the poles to flip, or at least its effect on convection cells, if there is one.

The resistance of the continents and the sinking of plates and other chaotic issues.

I bring all this up because while I don't have the ability to think about this, you do, and if you have any interest in this subject, you might be able to figure out some interesting things.

Thats why we consider heat as low grade energy bc we can't fully convert heat into work bc of 2nd law of thermodynamics.

U must be our professor

Really cool video, thank you 👍

this is amazing

What word would describe the opposite of entropy?

Wonderful explanation....now I understand what is actually meaning of entropy after 10 years of study👏🏻👏🏻 appreciate your efforts😇 love from 🇮🇳

How does life work, it’s insane how cells organize themselves and “battle” to exist despite the energy science saying they shouldn’t

Wow...

I have 4 millennial children, my contribution to entropy is immeasurable.
edit: 1 millennial and 3 gen z'ers

If you're still doing these, I'd love to hear you explain differential rotation and the math and astronomy of eclipses.

So this is a great explanation and I love it. But I have a request. I get how entropy works, but I’m having trouble imagining the scenario where all the molecitles end up in a corner of the room. I understand that it’s a one in a huge number probability. I get that. I’m just having trouble even understanding how such a scenario could even happen, I mean the scenario leading up to it.

It occurs to me that it would be easier for me to imagine if I saw one of these reverse videos where you ran a simulation where you started all the particles in one corner of the “room” with different velocities and then take a simulation, but then ran it backwards to show how it could conceivably happen. Do you think you would do that please?

Why ask why?

In the center of the blackhole there was a long cold flow line perpendicular to the plane of the galaxy and over time the cold decreased

Thanks

Correction: Entropy does not decrease in a room when you run a refrigerator. I had gotten the concept of entropy and exergy (Gibb's free energy) mixed up. The principle that entropy can decrease somewhere as long as it increases greater somewhere else is correct.