10 October 2017

Ignorance clarified on a single blow

OK, so I am doing this course of blender 3D modelling and animation on Udemy (by the way the course is being great in case you're interested). so far so good. I was taking a break, and was thinking to myself "this Udemy thing is a very good idea, I'm quite sure that they take like a 1-5% cut of the money paid for the course and everyone wins", and then my mind wandered to the realm of "would there be good genetics courses in here or maybe even something much more advanced like next generation sequencing data?" (which is what I do for a living, see where I was going?). So far so good again. So I type the word Genetics in the search box and only three results appear, and I think "maybe I should try and set up a basic genetics course or an advance NGS data processing course here" and while I think that, I notice how my brain was imploding, without knowing why yet. The signals from the screen in front of me were caught first through my optical nerve, and as they made it through the mesh of neurons, they were all dying in agony, until the doomed message reached my cortex. Screen capture below.


So, see something weird? out of the ordinary? no? leave me give you a hand.



All these years of research culminating in the CRISPR/cas9 and other genetic editing tools, which will probably be awarded the medicine Nobel prize a year or two from now. And now we learn that you could do that in a gym. Probably complementing it with dog's food and dying at 40 if I have to pay attention to the photo. Millions wasted in Science.

Why does this make me want to cry? inculturation, illiteracy, ignorance, all clarified in a single blow. Every time they say on the news things like "the people that have this gene or this other gene die younger or whatever". FOR FUCK'S SAKE, we all have the same genes, there are no humans that have genes that others don't, and those who do (have more or less genes) usually are never born or they die horribly soon after. Or like this guy up here, which I am sure that all the ladies love: your genetics don't change on your lifespan, unless it is to get cancer. I don't know maybe you are talking about that...

So we are clear, there is an almost exact copy of your genome in each of your cells (and by almost exact I mean 99.9999999% of the 3,000,000,000+ nucleotides in your genome are the same in each one of your 37.2 trillion cells) with very few exceptions (like some very specialised cells of the immune system; or erythrocytes, which don't have a nucleus) and none of them have anything to do with muscle, not by far. And if some bright mind wants to even mention chimerism, just don't. That does not happen while lifting.

So, if you don't know shit about something, please, I beg you, just don't stain terms you do not understand, or even better, worry to understand them before using them. Get to know what's a light year (no, it's not time measure, it's distance, get over it), a quasar, a lymphocyte, a gene, a spleen or whatever it is the thing you want to mention because you think it sounds cool and it will make you sound more clever.

Meanwhile, I'll be crying. Every time someone says something like "redefine your genetics" on a "build muscle" course on Udemy (WTF, by the way, and I am not even going to go into this) please, remember that Justin Beaver kills a cute kitten. or a pup.


6 July 2017

If I could save ten more movies

OK, so the aliens came and chose me at random to select ten movies to save for their archives before they wipe us out. The aliens have now seen the ten movies, and they liked them a lot, so they have come back, and now they have asked for ten more. I see a glimpse of hope for humanity, if they keep liking the movies (will they ask for some other kind of art?) I feed them we may postpone or even cancel our doomsday by alien's rays of death. So here I go with what would be my next ten movies.


Bakemono no ko (2015, Mamoru Hosoda)

IMDB 7.7, Rotten Tomatoes 90%

First of all, probably you have not seen this one, and that's OK, but you should, because if you have seen it and you don't like it, you are a unequivocally a bad person and you should know and should not have offspring. That's it. This movie is beautiful, from the animation, to the style, the story and the soundtrack. I guess you could replace this one with some Miyazaki movie like Princess Mononoke or Spirited Away (which I love), but the forgiveness message of this movie is so beautiful that this one made it here for me over Miyazaki's works.

Use the sword in your heart.

Aliens (1986, James Cameron)

IMDB 8.4, Rotten Tomatoes 98%

The first Alien movie is also great, and very different from this one (horror vs action, both in the science-fiction frame), but this one has so many epic lines, so much good stuff, and the aesthetics or visual effects have not aged one bit in three decades, that for me, this one is over the first one. This movie is the essence and the spirit of the fight for survival at the core of human beings. Bring on the Xenomorphs!

Private Hudson: Hey Vasquez, have you ever been mistaken for a man?
Private Vasquez: No. Have you?
The Dark Knight (2008, Christopher Nolan)

IMDB 9.0, Rotten Tomatoes 94%

Superheroes are a thing, have been for a long time. And I am a Marvel person, but I need to admit that the best superhero movie ever made is from DC universe, but they got it all wrong when naming the movie: the title should be "The Joker". This movie is about him, and leaving the performance of an actor like Christian Bale in the shadows is no small feat additionally. Only that scene of the joker coming out of the hospital with the nurse dress and the blowing it up... masterful.

Introduce a little anarchy. Upset the established order, and everything becomes chaos. I'm an agent of chaos. Oh, and you know the thing about chaos? It's fair!

Return of the Jedi (1983, Richard Marquand)

IMDB 8.4, Rotten Tomatoes 80%

And I mean Star Wars in general. Although for me the best one is not The Empire Strikes Back but this one, but can I say, I am a sucker for grand finales. If you have not seen Star Wars, you really don't understand the XX century pop culture. So do yourself a favor and go see it.

Luke: I'll not leave you here. I've got to save you.
Anakin: You already have, Luke.
Avatar (2009, James Cameron)

IMDB 7.8, Rotten Tomatoes 83%

Put together Pocahontas, Dancing with Wolves and Aliens, add the most stunning visual effects in the history of cinema and you have Avatar. James Cameron is creating one of the most engaging universes of the XXI century with this saga, and additionally the background message of what we are doing with our planet is so necessary... that this movie had to be on this list.

I see you.

Zootopia (2016, Jared Bush, Byron Howard and Rich Moore)

IMDB 8.1, Rotten Tomatoes 98%

The characters in this movie are incredibly well defined, depicted and complex. The animation work is beautiful. And the story is the best cry out that we have for the world of racism, sexism and egoism that we live in. It is emotional, funny and clever. It touches a part of us that we all should care about. Plus the sloths. THE SLOTHS.

Life isn't some cartoon musical where you sing a little song and all your insipid dreams magically come true. So let it go.
Avengers (2012, Joss Whedon)

IMDB 8.1, Rotten Tomatoes 92%

The Joker... I mean, The Dark Knight could not be in this list with MCU absent. So here are The Avengers to represent the MCU, the biggest cinematographic universe ever made, with a story so rich and fun and characters so complex and fleshed out than it rivals to the comics from were they draw inspiration. What Marvel is doing with all this has no precedent in the history of cinema.

Steve Rogers: Big man in a suit of armour. Take that off, what are you?
Tony Stark: Genius, billionaire, playboy, philanthropist.




Cloud Atlas (2012, Tom Tykwer, Lana and Lilly Wachowski)

IMDB 7.5, Rotten Tomatoes 66%

This movie will give you several of the biggest brain fucks you have ever had in your life in just one evening, in the best possible way. I am not one of those Lars Von Trier/Terrence Malick morons that go about saying things like "if you didn't like it, it's because you did not understand it", but in this case, if you didn't like it, it's because you did not understand it. I guess that makes me a Wachowski moron, which I am happy to be.

Our lives are not our own. From womb to tomb, we are bound to others. Past and present. And by each crime and every kindness, we birth our future.
Terminator 2 (1991, James Cameron)

IMDB 8.5, Rotten Tomatoes 93%

One of the best movies ever, one of the best science-fiction plots wrapped in the best possible action container, the best Schwarzenegger movie, and the best Cameron movie. Also the best depiction so far (and it is from 1991) of the Asimov's concept of 'travel back in time to save the future'. Anything to add? I thought so.

Watching John with the machine, it was suddenly so clear. The terminator, would never stop. It would never leave him, and it would never hurt him, never shout at him, or get drunk and hit him, or say it was too busy to spend time with him. It would always be there. And it would die, to protect him. Of all the would-be fathers who came and went over the years, this thing, this machine, was the only one who measured up.

The Crow (1994, Alex Proyas)

IMDB 7.6, Rotten Tomatoes 82%

The devil is in the detail, and there are so many great details in this one. One of the best examples that the best best love stories don't need to be told in a cheesy way, and can even make for an amazing action movie with a great dark atmosphere.

People once believed that when someone dies, a crow carries their soul to the land of the dead. But sometimes, something so bad happens that a terrible sadness is carried with it and the soul can't rest. Then sometimes, just sometimes, the crow can bring that soul back to put the wrong things right.


25 May 2017

On Happiness

From this geneticist point of view, all human’s minds (and all living beings) have three layers, from bottom to top: Primal, Social and Learned; and each one is based on the one before.

The Primal layer is encoded in the genes (and thus, each one of us is different from all the others, Primal is stronger is some individuals and weaker in others when it comes to behaviour), and it represents the most basic instincts inherent to a species, like the survival instinct, the search for nourishment and the urge to mate and reproduce to inherit your genes. Primal has been selected over millions of years across millions of species, these instincts started to evolve from the LUCA, and are inherent to all living beings to a great extent and very difficult or almost impossible to override.

The Social layer is encoded through epigenetics, and is specific to species and even groups within the species when these are widely spread (like humans). These changes evolve much faster than hardcoded genetic mutations, and they are the basis for the adaptation to rapidly changing environments. Fear, love, hate, predominant aesthetic, and a wide range of what are considered mental disorders fall in this layer. These are more easily overridden than the Primal layer, which can be achieved in several ways, the most obvious, when they enter in conflict with a Primal, the Primal usually wins; but also they can be overridden by drugs or force of will for example.

The Learned layer is not encoded in the genome, neither in the genetics or the epigenetics of the individuals. What’s contained in this layer is passed from generation to generation through a combination of memes together with personal experience. Knowledge, science, religion, art, morals, fashion and many other human constructs fall in this layer. As you can imagine this layer is easily overridden and/or influenced by the Primal and Social layers.




These three layers are very abstract concepts, and, thus, very difficult to measure directly, hence, enter proxies. Proxies are widely used as easy measures of a thing that can tell us something about the measure of another thing which is much more difficult to measure. For example, when a human presents mongoloid factions, that is considered to be a proxy for a trisomy of chromosome 21, and, thus, Down syndrome. Not every human with mongoloid factions has a trisomy of chromosome 21, and more in general, no proxy correlates perfectly with its target trait, whether it is Primal, Social or Learned; but they work very nicely to predict things which would be very hard or impossible to predict otherwise if you find the right proxy.

It is also important to consider that this is not about how many things are contained in each layer (and that is also important, but a different discussion), but about how much of each layer is in each decision that we make in our life. There are very few things in the Primal layer, and tons and tons of them in the Learned layer (in humans, or some of them anyway), but in you, the Primal layer can be the one making the decisions over the others. If the hardcoded genetics variants you carry make you more Primal, and since Primal is most difficult layer to override by our conscious self, your decision making will be mostly Primal, and in which sense specifically will also be hardcoded in your genes. If the hardcoded genetic variants you carry makes you less Primal, but your epigenetics directs you to some aspects of Social more strongly, then the Social layer will be predominant on your decision making. If both your genetics and your epigenetics are not particularly strong towards one thing or another, then your decision making will be mostly influenced by your Learned layer, i.e. by the memes inherited from your parents, family and friends and by your personal experience; or the pool of all the knowledge your mind has acquired during your life up until the point you make that decision.

The brain is an architectural construct product of millions of years of evolution over the genetics and epigenetics of the species. The circuits of neurons within our brains encode all the information that is us, our mind; and these circuits belong into one or more areas of the brain that are in charge of different aspects of the mind, e.g. spacial perception, abstract thinking, self-awareness, memory, etc. How these circuits are and can be made and connected are first determined by our genetics, and most of it occurs during pregnancy (the foundation part if you will). What is not determined by genetics during pregnancy is determined by epigenetics (and this part can get really complicated, since we do not express our epigenetic alleles, but our parent’s). Then we are born, and the most basic things have been already set by our genetic variants (things can change during puberty, for although our genetic sequence does not change over life, the gene expression levels can, and some of these changes are genetically encoded, and puberty is a messy thing from a genetic and hormonal point of view), but epigenetics keep changing through our life depending on the environment, and also, we start learning things, and thus, building the Learned layer, which, usually, gets bigger and bigger as you live.

Taking all this together, each individual will be the mix of its three layers. One particularly impulsive individual in all matters maybe will be 60% Primal, 30% Social and 10% Learned for example (he or she could have tons of knowledge, but not used in decision making), while a person considered as very tempered could be 10% Primal, 30% Social and 60% Learned. How could we determine this? As we spoke before, proxies. So, which are good proxies for the strength of each layer? In my opinion there can be many, and a mean of plenty for each layer would be more adequate, but to keep things simple, and again, in my (educated) experience:

  • Number of wisdom teeth for the Primal layer. Most common number in humans is four, and in my opinion this is fairly primal (yes, most humans are reasonably primal, hence, the irrationality in the world). If you have six like me, you are totally screwed, but the good side of it is that people around you usually know how you feel, since you are very obvious and a fucking bad liar. One day, probably some 5,000 years from now, if we haven’t killed ourselves, hopefully the most common number of wisdom teeth in humans will be two, and the world will be a better place.
  • Number of people you consider your friends (they also need to consider you their friend) for the Social layer. No, Facebook friends do not count. Tweeter followers do not count. Only people that you would put your life in their hands.
  • Number of full (cover to cover) books you have read in your life for the Learned layer. In here there can be a lot of debate, as this is the most complex layer, but in my humble opinion things like twilight and fifty shades of grey do not count.
So now sum your wisdom teeth, your friends and the number of books divided by 12 (universal constant to normalize books that I just made up) and that’s your total (let’s call it N). Your Primal percentage is wisdom teeth/N, your Social percentage is your number of friends/N and your learned percentage is (number of books/12)/N. How are you? Do you agree? In my case it looks like….




Logically, you are born completely primal (no books, no friends, all teeth). According to this proposition, if you want to be less Primal, start reading more books and making more friends, motherfucker. On the other hand, if you want to be more primal, stop reading books and by all means tell everyone around you to go fuck themselves.

So, finally, happiness. What is happiness?. That elusive thing that all of us seek, none understand and few attain for more than some hours in a whole life. In my opinion, happiness is agreement, the agreement of the Primal, the Social and the Learned layer. Achieving this agreement in some banal decision like whether to cut your hair or leave it long will give you some 0.00000000000000000000000001 miliseconds of happiness (keep summing, champion!). Achieving this agreement when making the most important decision in your life could give you a whole year of happiness, but I don’t think that any human yet has been able to do this. Plus, if all the parts of your mind work at unison you become invincible, everyone knows that, while if they disagree, you, as a conscious being, is full of doubt, and doubt only leads to failure.

But then again, all is determined by the universe and written already in the universal equation, so why bother? Just do whatever it is you’re going to do.

19 May 2017

If I could save only ten movies

The other day a committee of aliens came to me (crazy, I know), and they explained to me that they have stellar nurseries in which they hatch their own, but for it to work they need tons of biomass. They explained how places like earth are just some wild farm from where to gather this biomass, and that we are about to be harvested. Even then, they feel bad about all the countless species to have extincted so far, so they have a tradition (just to make them feel better about the xenocides). When they are about to harvest a planet they ask their inhabitants for some token of their culture to be stored in their quantum crystal digital stores, so they will be preserved forever and seen in a billion worlds for a billion years. In our case they want movies, ten of them. As they understand society, any chain is as week as the weakest link, so all individuals have to be equally prepared for everything at all times in their species; hence, for anything they just choose someone at random, and that's what they apply to others also (rings a bell?). They have explained to me that I have been chosen at random from seven billion, and that I have to choose these ten movies as the only thing that will remain from us once we are harvested. This is just a farm, none will survive, it's the end of all days. We humans don't work like that, we specialize, but that's how it has to go down, so even I am no one to say, in my most humble opinion these would be my top ten, in no particular order, and the reasons why.


Blade Runner (1982, Ridley Scott)

IMDB 8.2, Rotten Tomatoes 89%

Where Science-Fiction, Philosophy and Noir meet at their best (AKA cyberpunk), if I could only pick one movie for the alien's repository of gems from every planet they've wiped out, chances are it would be Blade Runner. Only the question asked here... what happens when we have the tech to build synthetic humans, that feel and think as you or me do, that come with "best before" date for cheap and disposable work force? Based on the equally genius novel Do Androids Dream of Electric Sheep? by Philip K. Dick.

I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I watched C-beams glitter in the dark near the Tannhauser gate. All those moments will be lost in time... like tears in rain... Time to die.
Pulp Fiction (1994, Quentin Tarantino)

IMDB 8.9, Rotten Tomatoes 94%

The best portrayal in movies of how random, cruel, vicious, stupid and greedy humans can be. Not sure a good idea that the aliens see this one, but only the conversation about feet massage with Vincent and Jules backs on camera makes it worth it. A master piece of apparently absurd dialogue that hides profound knowledge and wisdom about human nature.

Ezekiel 25:17. The path of the righteous man is beset on all sides by the inequities of the selfish and the tyranny of evil men. Blessed is he who, in the name of charity and good will, shepherds the weak through the valley of the darkness, for he is truly his brother’s keeper and the finder of lost children.
Inception (2010, Christopher Nolan)

IMDB 8.7, Rotten Tomatoes 86%

Christopher Nolan is one of the best directors of all time, and sure the best from his generation, and this is probably his best movie. A dream within a dream. A spinning top spinning on a table as the final scene presents you with at least seven possible endings. And the cast of the movie delivers some of the best acting ever seen in a movie.

What is the most resilient parasite? Bacteria? A virus? An intestinal worm? An idea. Resilient... highly contagious. Once an idea has taken hold of the brain it's almost impossible to eradicate. An idea that is fully formed - fully understood - that sticks; right in there somewhere.

Fight Club (1999, David Fincher)
IMDB 8.8, Rotten Tomatoes 79%

Every generation has their own big adversity, you name it: the black plague, the crusades, the inquisition, world wars, cold wars, great economic depressions; but not us, we are the sons of apathy with nothing to fight for but our hedonistic desires, and no greater enemy than ourselves. And this movie is the perfect reflection of that reality, plus the brilliant script and the stellar performance by Brad Pitt and Edward Norton. Based on the book of the same name by Chuck Palahniuk.

Advertising has us chasing cars and clothes, working jobs we hate so we can buy shit we don't need. We're the middle children of history, man. No purpose or place. We have no Great War. No Great Depression. Our Great War's a spiritual war... our Great Depression is our lives. 

Ghost in the Shell (1995, Mamoru Oshii)

IMDB 8.0,  Rotten Tomatoes 96%

Humans have replaced so many parts of them for machines that they are hardly human, and machines are so evolved that they have feelings more humane than humans. The story of a hybrid between human and machine discovering what she is and of an AI born in the vast information sea of what we know today as the internet. Based on the manga of the same name by Masamune Shirow published in 1989, when the internet as we know it today was but a dream.

If a technological feat is possible, man will do it. Almost as if it's wired into the core of our being.

The Godfather Part II (1974, Francis Ford Coppola)

IMDB 9.0, Rotten Tomatoes 97%

[This one is interchangeable with the first one, for me, part II is better since I am more a Robert de Niro person than a Marlon Brando person, but both are sublime].

The Godfather. shit. If this one (or the first one) is not on your top ten list you need to have an MRI done on your head to look for brain damage. I am not even going to argue why this movie is here.

My father taught me many things here - he taught me in this room. He taught me: keep your friends close, but your enemies closer.


The Matrix (1999,  Lana and Lilly Wachowski)
IMDB 8.7, Rotten Tomatoes 87%

The Wachowskis took East and West philosophy, computer programming, martial arts, Ghost in the Shell, Rene Descartes and Isaac Asimov to ensemble one of the most influential, imitated, mind blowing and aesthetically perfect movies ever made. And I love the sequels too, contrary to popular opinion. I know this is usually a trope, but in my case, I actually only say this of two movies (this one, and its sequels, and Inception): If you don't like them, it's because you don't understand them really. And the worst thing is believing you understand them when you don't, for you cannot learn a thing you think you know.
This is your last chance. After this, there is no turning back. You take the blue pill - the story ends, you wake up in your bed and believe whatever you want to believe. You take the red pill - you stay in Wonderland and I show you how deep the rabbit-hole goes.
Contact (1997, Robert Zemeckis)

IMDB 7.4, Rotten Tomatoes 62%

The best of the very few movies that takes a serious and believable approach to the first contact with an alien civilization (hello Arrival). A beautiful story of hope for mankind amidst an age of technological and scientific advance and ideological and political stupidity. Based on the book of the same name by Carl Sagan, one of the best human beings ever born. We miss you Dr. Sagan.

You're an interesting species. An interesting mix. You're capable of such beautiful dreams, and such horrible nightmares. You feel so lost, so cut off, so alone, only you're not. See, in all our searching, the only thing we've found that makes the emptiness bearable, is each other.
The Martian (2015, Ridley Scott)

IMDB 8.0, Rotten Tomatoes 92%

Ridley Scott has in this list Blade Runner, which is one the most dystopic, dark and depressing movies you can imagine, while he also directed The Martian, a movie about optimism, about never surrendering, about using our most powerful weapon to overcome any obstacle: our intellect and knowledge. Plus the power of science. And I never liked Matt Damon, that is, until I saw this movie, in which he proved to me what he can do. Based on the book of the same name by Andy Weir.

In the face of overwhelming odds, I'm left with only one option, I'm gonna have to science the shit out of this.
Dracula (1992, Francis Ford Coppola)

IMDB 7.5, Rotten Tomatoes 78%

Many books have been adapted to movies, and almost always the book is better than the movie (especially in the case of the Lord of the Rings). Not this once, this Coppola adaptation of one of the most (in)famous books in human history beats the novel by Bram Stoker, and that's a lot to say from me, since the book is also one of my favorite ones. Contrary to the appearances, a story about what happens when we find ourselves out of our place and out of our time. We would all be monsters if suddenly we are placed in a different country 500 years from now. And it also happens to be one of the most beautiful love stories ever made.

I have crossed oceans of time to find you.







On a side note(s)

there are several things that appear more than once in this ten movies: both Ridley Scott and Francis Ford Coppola directed two of them. Coincidentally, Keanu Reeves is in two of them (The Matrix and Dracula) although he only has a lead role in one of them. Two of them were made the same year, 1999 (The Matrix and Fight Club). Six of the ten are Science-Fiction. Eight of them are based on books (where most good stories come from). And all but one (Ghost in the Shell) are from the States, which makes me think, we can say tons of shit about the people from the stars and stripes country, but they do know their shit when making movies (to be fair the have probably also done 9 of the 10 worst movies ever done, but who cares?).

I feel sad there is no more space in the alien's quantum crystal digital stores for some James Cameron and Martin Scorsese movies, which are obviously the honorable mentions for this list.

And finally, no, Citizen Kane could not be here. That is one of the shitiest movies I have ever suffered. I would prefer to take out my nails using my teeth rather than to have to watch it again. Fuck Citizen Kane.

20 January 2017

Earth, 2223

[Space-time rift opens]
Alien Leader: Salutations, citizens of Earth.
Human Leader: Sup.
AL: We have been observing you for more than 2,000 of your years, and looking at the advances you have made, we are considering finally inviting you into the Coalition of Advanced Civilizations (CAC).
HL: Sounds amazing.
AL: But first we would like to ask you some questions, as there are some aspects of your culture we do not fully understand.
HL: Shoot.
AL: What is lying?
HL: Not telling the truth.
AL: What is the truth?
HL: Emm... something you know for a fact. For example, two plus two equals four is true, and two plus two equals five is false, or a lie.
AL: Why would you do something like that?
HL: Because when your competitors are better than you, you can only best them by using deception.
AL: But, you are a cooperative species, are you not?
HL: Yes.
AL: Are you lying now?
HL: No.
AL: How a species that is using a concept as counterproductive an infuriating as lying have attained terraformation? We do not understand.
HL: Terraformation?
AL: Yes, the technology to change a planet according to the needs of their people. You used CO2 to increase the temperature in the polar caps to raise sea level so you could reduce the land mass by a 97.6% and raised the temperature by 12C in 100 years, removing 80% of the species in the planet, we presumed, in order to reduce competition for resources and gain more habitable space for your aquatic species.
HL: Ha! we have done no such thing. And we are not aquatic. We just screwed our planet because we did not care or we were blind.
AL: Impossible. We have never made a misjudgment of this magnitude. You must be lying now, are you not?
HL: No.
AL: It is impossible to know when you do. This concept makes no sense whatsoever, how do you tell the truth from the lies when you interact with your own?
HL: We really don't. That's why we screwed in the first place.
AL: I think we have made a mistake.
HL: You bet.
AL: Farewell.
[Space-time rift closes]

17 January 2017

Random Genome Facts

So, the human genome. Property of our species as a whole and each one his or her own individually. twenty-three pairs of macromolecules (chromosomes) made of smaller covalently attached molecules (nucleotides) in the nucleus of most of your cells; that, when unraveled (it is very well packed) is about three meters long. In an average human body there are almost 4 trillion cells, and a very conservative reasoning would be that around 3/4 of them have nuclei (and thus, DNA), so in your body you are carrying some twelve billion kilometers of DNA (among other things), which is enough to go to the sun and back. EIGHTY times.



Nucleotides, as I said, are the basic building block of DNA, or letters, and our genome is a three billion letters long book that tell our biological story at many levels (and you have around six trillion almost prefect copies of that in you). But books need structure, don't they? well, sort of. these letters make sentences (or genes, counting some 20,000 of those), which are (obviously) made of words and spaces (exons and introns). An average sentence (gene) has eight words (exons), and that makes your book around 160,000 words long (Tolkien's Silmarillion is 130,000 words strong for comparison).

You think those are not too many words? think of this. In an actual book, words are in an specific order forming sentences, paragraphs and chapters which would not make any sense of you scramble the order of the words. In the genome this happens all the time though, there are words (exons) that can be removed or added and modify the meaning of the sentence while making sense in the context of the story. Also, the sentences (genes) are not arranged linearly, but are scattered throughout the book, and you have to know in which order you can read them to make chapters (biological pathways) for the story to make sense. Plenty of those sentences (genes) can be found in different chapters, making perfect sense as they are in two or more places, or maybe just removing or adding a word. FYI, each variation of a sentence (gene) caused by the removal or addition of one word (exon) is called isoform (no equivalency here with literature, that I know of).

So we all have all these three billion nucleotides (or letters) in our genome, then what makes each of us a special snowflake? Genetic variation, as a very simplified explanation, the letter in each of those position (and there are four possible letters: A, T, C and G) can change for different reasons, and that is called a mutation. even though all of the three billion letters can change, only some of them (80 million) have been described to actually change in human beings.

And this takes us to the last curiosity about the genome, or how many different possible people there can be due to genetic variability (or in other words, due to the specific set of mutations that we carry in our genomes; and, yes, we are all mutants, no matter what the x-men comics would have us believe, the thing is each of us are mutants for a different set of changes, which is unique to us). Some big numbers first: there are 10 to the 120 (or 10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000000,000,000,000,000,000,000,000,000,000000,000,000,000,000,000,000,000,000,000) possible ways in which a chess match can go down; there are 7.5 multiplied by ten to the 18 grains of sand on planet earth  (or 7,500,000,000,000,000,000); there are 100 billion galaxies and 300 billion stars on average on each one of those (not that much of a deal) and around 10 to the 90 atoms in the universe.

Prepare for this.

The combinatory of 80,000,000 (the total number of potential letters that can change, mutate, in our genome) is 2 to the 80,000,000, which is far FAR greater than 10 to the 1,000 (remember there are 10 to the 90 atoms in the universe). 2 to the 80,000,000 possible humans thanks to our genetic code. And that is not taking into account other sources of variation, like CNVs (copy number variation) or structural variation (like the loss of a whole part of a chromosome of the very famous trisomy  of chromosome 21). Think of how unique you are.

Or as Richard Dawkins puts it:

“We are going to die, and that makes us the lucky ones. Most people are never going to die because they are never going to be born. The potential people who could have been here in my place but who will in fact never see the light of day outnumber the sand grains of Arabia. Certainly those unborn ghosts include greater poets than Keats, scientists greater than Newton. We know this because the set of possible people allowed by our DNA so massively exceeds the set of actual people. In the teeth of these stupefying odds it is you and I, in our ordinariness, that are here.We privileged few, who won the lottery of birth against all odds, how dare we whine at our inevitable return to that prior state from which the vast majority have never stirred?”

Have a nice day snowflake.