The human body is an incredible machine. One that has been in the making for over billions of years. The process began when chemistry gave us the very first single-celled microorganisms. Natural selection did the rest. Lo and behold; here you are. Wasting your time reading thoughts written down by yet another chemical powerhouse who functions just like you. One who breathes, eats, produces energy, uses it all, and ultimately does his part by making sure he increases the entropy of the Universe. The ultimate quest.

“The most complicated form of life is built from the simplest form of life; the cell, the basic building block of life”

We work on simple principles dictated by the laws of physics and chemistry. A by-product of science. Evolution has a funny way of doing things. The most complicated form of life is built from the simplest form of life; the cell, the basic building block of life. Tiny chemical powerhouses reproducing and dying each and every second all throughout your body. Nature has built us up from dust (from water, technically. But that isn’t nearly as poetic). Complicated structures from the simplest ones, like a Death Star built from Lego blocks.

Life from DNA. Source: http://healthylnb.com/wp-content/uploads/2015/12/diet-and-DNA.jpg

“The total length of uncoiled DNA inside your body could cover the distance between the Earth and the Sun a staggering 746 times!”

The chemistry behind the working of these cells is fascinating, to say the least. It contains all the information that makes you, YOU inside it. Most importantly, it contains your DNA; a ridiculously complicated structure made up of proteins that gives you all your characteristics. From your height to the colour of eyes; from the colour of your hair to the shape of your nose. Absolutely everything about you; stacked neatly in the complex chains of molecules wound in coils. Your source code. To give you an idea about exactly how complicated DNA actually is, imagine this: the total length of uncoiled DNA inside a SINGLE cell (roughly 10–100 µm in size) is about 3 metres. Your body contains about 37.2 trillion cells. Add all this up and the total length of uncoiled DNA inside your body could cover the distance between the Earth and the Sun a staggering 746 times! Numbers your brains cannot even imagine. This is what makes you what you are. A living, breathing human being capable of making conscious decisions and having a thought.

“Everything has a purpose: to create meaning. Meaning out of seemingly meaningless things”

You are the emergent property of chemistry. All these 37.2 trillion cells coming together to make something smart. Something that exists merely due to the networking and communication between all these chemicals. Perfectly synchronised. Take one part out and the whole structure will fall in a state of utter chaos. We see this everywhere around us. The principle of Emergence. We see it in our buildings, our Governments, our architecture, our technology. Several seemingly useless things coming together to create structures of such vast importance that humanity would stop functioning should one of these fail. Nothing exists just for the sake of it. Everything has a purpose: to create meaning. Meaning out of seemingly meaningless things. Take a piece of steel and by itself, it is just scrap. But collect several trillion pieces and arrange them together and you have a building. Our whole Universe is an excellent example of an emergent phenomenon. All the things that exist in it come out of a single point of infinite density. The Big Bang. Something out of nothing. Emergence.