Time is finite. You can’t cheat time; buy more or waste it. It passes us by, both quickly and slowly by the second, minute, and hour. Time has made us a slave of us. Our perception of time skims above the laws of nature that determine the alignment of the big hand at one and twelve. Let me explain why this seemingly boring physics concept will help you carpe diem the fuck out of life.
To begin we must discard the idea that time, objects, and the universe exist as singular entities. Instead, let’s think past the physical dimensionality and see these as a series of bonds, atoms, and forces that exist in the world. So, unless you are a woman in STEM, it’s time to draw out your GCSE physics knowledge as we use the most fundamental law of physics to understand the evolution of the universe and the passage of time. Light work.
Let’s wind the clock back…In the 19th century, engineers were concerned with the efficacy of steam engines – the newest coolest means of transport! They all sounded like this (cue winey male voice): ‘How hot should the fire be? What substance should you boil in the steam engine? Should it be water? Why did I study engineering at university?’. These were the hottest questions. Out of this steam arose the science of thermodynamics: ideas of heat, temperature, and energy danced between the mouths of scientists for the first time. And thermodynamics brought their radical new friend entropy to the party.
Entropy explains why, when left to the mercy of the elements of our weird little world, mortar crumbles, glass shatters, buildings collapse, ice melts, and my mint tea goes from scolding to freezing in the Slavonic annex in the library. The majority of these processes are seemingly irreversible, moving in one direction like life itself… But why? Well, I’m glad you asked.
I am the Science Sheriff, let’s lay down the Laws of the Land:
– Law 1. Conservation of Energy: Energy can neither be created nor destroyed, it can only be transferred from one form to another.
– Law 2. Entropy: The total entropy of an isolated system will always increase over time.
So, entropy is the measurement of disordered energy in a structure. But what counts as disorder? Is a glass of room temp water or crushed ice more disorderly?
So in the atomic bonds that make up everything in our world, energy is stored in the bonds. Energy pockets hold indivisible units of energy (aka quanta) more energy = hotter. I must have so much energy in me because I am smoking! I’m sorry, back to thermodynamics.
Energy doesn’t stay put; it continuously moves between neighbouring bonds (energy lowkey ADHD coded). There are numerous ways the energy can be distributed in the solids yet still have the same amount of energy. These possibilities are called microstates. As energy moves the configurations change because of the distribution of microstates: there is a 21% chance that the system will later be in the configuration in which the energy is maximally spread out, 13% chance it will return to starting point and an 8% chance that solid A will gain energy, more ways to have disbursed energy (high entropy) than concentrated energy (low entropy) the energy tends to spread out.
If you put a hot object next to a cold object, the cold once heats up and the cold one cools. But remember, there is an 8% chance the hot object could get even hotter, so why does this never happen? The size of the system so lets make things bigger, bigger is better 😉
The likelihood of each state becomes smaller and bigger.
So it’s not impossible, it is improbable.
Entropy is the measurement of this disordered energy. The energy configuration in which the energy is most spread between the solids has the highest entropy, low entropy means the energy is concentrated. Frozen ice melts into lukewarm liquid, plump tires deflate into wrinkled husks, and your warm dinner cools, all because these states have more dispersed energy than the originals. There is no mysterious force nudging the system towards a higher entropy, it is just always statistically more likely. Statistics yuh! Statistics! This singular direction of energy exchange gives the meaning to time, time is facilitated by entropy facilitated by life, yes you.
Entropy is dubbed time’s arrow, if energy has the opportunity to spread out through you and the world you inhabit, it will.
So let me ask: if energy will always spread out, when did it begin and, more importantly, when will there be no more butter to spread on our toast?
Our world came about with the big bang, contrary to maybe all religious institutions. Above you will find a Cosmic Microwave Background, a microwave telescopic photograph of the cooled remnant of the first light that could ever travel freely throughout the Universe. We can see how the universe started with a very dense and hot phase of low entropy that expanded outwards and cooled itself into high entropy.
Ultimately, entropy teaches us that reality is moving closer and closer to complete disorder. A comforting thought indeed. Each day has a higher entropy than the next. In our world things tend to go from orderly to disorderly because there are many more ways to be disorderly, it is more probable. Maybe one day we will reach the heat death of the universe, the systems that increase the overall entropy of the universe push us to the maximum entropy, a maximum level of disorderliness and chaos. Or it will be a simple equilibrium: the maximum chaos will lead to nothing interesting ever happening again.
Now, this isn’t to push you into a pit of depression or to start reading existentialist philosophy (though Camus is fantastic). I’m telling you to live. Life and energy is flowing within you, the bonds that make up your very being are swelling with energy attempting to diserpate. We exist within this process, we are servants to these laws that define our world but it does not have to be a subordinate existence. As the poet Paul Celan says ‘the world is fucked, I must carry you’. Celan’s right! The world IS fucked in its own laws, so fuck it. The pursuit of men for centuries has been the domestication of this chaos. Instead, embrace it. Ask someone out, cut off your hair, and live outside the lines of fear. For life is storming forward and I beg you follow the call and see what lies before you in the stars. And I pray they shine as bright as you.







