As so many
immigrants expats around the world, I like to
follow the news regarding what's happening back in my home
country. But getting complete, reliable information has been getting more and
more difficult every year, and 2020 is the year in which I finally ran out of
Unlike my parent's generation, I don't consider newspapers a reasonable source
of reliable information. The problem is that, following the example set by
Fox News, the largest newspapers at home have substituted fact for opinions,
extremely biased articles, and outrage has replaced objectivity as the
main selling point. All of this seasoned with local celebrity gossip, of course.
If despite my best judgment I decide to check what's going on based on
newspapers, I currently start with the biggest newspaper
(which is very right-leaning) and then compensate with their main opposition
(which is, as expected, very left-leaning). I then figure out which news are
common to both, and decide which version is more likely to be true -
one newspaper's fair trial is the other newspaper's witch hunt, and one
newspaper's smart move is the other newspaper's national betrayal. Finally, I
check which news have been mentioned in only one of them, and decide on a
reasonable narrative for why only one of them is talking about it. Suffice to
say, doing this in the morning on my phone takes a lot of effort.
In my case, this was one problem (probably the only one) solved by the news
aggregator Reddit. The sub-reddit for my
country used to be relatively good at highlighting the main issues in the public
conscience, and reading the main posts used to be enough to get a good, updated
picture. But not anymore: extremely lax moderation and general apathy
have turned the forum into a meme-laden wasteland where all information has been
replaced by bad jokes, political outrage, and the occasional "kill all poors"
post. So I quit it for good, and haven't looked back.
Which leads me to today. I have not yet found any source of news that I can
trust to inform me. Sure, I can easily get distracted, entertained, outraged,
tricked, and lied to, but informed? Good luck with that. I have remained
uninformed for a couple months now, and I don't see that changing anytime soon.
Being a programmer who has spent a bit of time toying around with NLP,
I have been working on a solution - a small news aggregator where I can get a
proper sense of what's going on. But it hasn't been easy: news agencies no longer
offer RSS feeds, important
data is locked behind proprietary formats made intentionally hard to read, and
there is barely any corpora around in Spanish that I could use to train models.
I don't have a deeper point. I can't promise that my solution will work, because
it's entirely possible that it never makes it out of vaporware. I don't have a
website to recommend, because websites are getting bad faster than good ones are
propping up. And I'm not going to talk about the cesspool that are unmoderated
forums because we all know about that already.
I just wanted to say: I am very unhappy with this situation.
I am okay at drawing. That means: I am probably better at drawing than
a random person walking down the street but I'm far, far behind the type
of artists that regularly post in Instagram. I am also mostly self-taught:
I took some initial lessons via mail from the well-known (at the time)
gave up for a couple years, and picked it back up in my late teens when
I needed something to do besides programming and not having friends.
Some of my drawings have been published,
and one in particular has been stolen countless time by people who
thinks copying things from the internet without attribution is fine.
I was recently asked what I would recommend to someone who wants to
learn how to draw. This question took me by surprise for two reasons: one,
because I was never asked this before, and two, because my answer was
surprisingly useless even to me:
Any tutorial you find online will give you the right steps. But you'll
only understand them after you already know how to draw.
This is a pointless answer, which also happens to be 100% correct.
This post is my attempt at giving a slightly clearer answer, explaining
why anyone would think that my advice makes sense and hopefully give
beginners some good points on where to start.
Note 1: this post contains links to drawings of naked people. If you are
not comfortable with drawn nudity, you should probably not follow the links
and definitely reconsider whether figure drawing is good for you.
The boring advice
All drawing is, at its core, more or less the same. Whether you are
interested into realistic drawing, comic drawing, manga drawing (a term
I hate), webcomics or editorial cartoons, the art of representing human
figures in 2D is based on 90% the same rules. Sure, US comics have more
muscles and japanese manga characters have no nose, but the fundamentals
are the same. A typical drawing curriculum should include:
- How to sketch a human figure. This guide
is relatively good, while this one
sucks for reasons I'll explain later on. If you've seen those wooden
they are useful for getting the hang of this step.
- The proportions of the human body. More specifically,
on how many heads you need to draw a full body.
- The proportions of the face. This is annoying enough that it often
warants a section on its own.
- How perspective works. One, two, and three points perspective are
the typical ones.
- How shadows work. Getting it perfect will take a long time, but
"dark part is dark" will get you far with little effort.
Once you reach this point, you can either start learning about muscles
and improve your anatomy (have you ever stopped to think about how weird
knees look?), or become a caricaturist and call it a day.
The number of books and tutorials out there convering all these points is
virtually infinite, and therefore any book you choose it's going to be
probably fine. If you want some more specific advice, multiple generations of artists
have learned with Andrew Loomis' books, which are freely available on
the Internet Archive. You should start with Figure drawing for all it's worth,
follow up with Drawing the head and hands,
and fresh up your perspective with the first half of Successful drawing.
Practical advice I: Keep drawing
There are two extra pieces of advice worth discussing.
The standard advice says "keep drawing until you become good at it",
which is technically true but only barely. The full, honest version
Start with one drawing. It will suck, and that's fine. Once you're
finished, look at it objectively and enumerate its defects. For
your next drawing, focus on solving those defects. Repeat until
you consider yourself good enough1.
In other terms: you can draw circles all day and all night
for years, but that won't make you any better at drawing squares. If you
want to get better at drawing, you first need to be aware of what's
there to improve.
That doesn't mean that you can't be happy about something you just drew.
Few things are as rewarding as putting your art supplies to the side,
looking at your drawing, and admiring something knowing that you made
it. All I'm saying is: you need to know what your blind spots are. If
you are like me and your eyes are always sliiiiightly out of alignment,
it is perfectly fine to still be happy about that portrait you just made.
But if you are not honest and accept that yes, that one eye looks weird,
then you will never learn how to fix it2.
Practical advice II: Copy other people
As the quote goes,
"Good artists copy, great artists steal".
Therefore, it is your duty as aspiring artist to copy as much as you can.
Most self-taught artists I know started the same way, copying drawings
over and over until they felt comfortable enough to start doing their own.
My suggestion: find an artist you like. Pick one of their drawings and
copy it. Add the final work to your sketch folder. Repeat. This exercise
serves several purposes:
- It will improve your pencil grip, make your lines stronger, and
improve your technique overall.
- It allows you to focus on a sub-part of the problem (drawing a figure)
without having to worry about the complicated stuff - you don't need
to think about perspective, shadows or posture because the artist
already did it for you.
- It helps you to build your personal portfolio. It will help you visualize
your progress, and gives you something to brag about whenever someone
learns you are drawing and asks you to see something you've done.
Plus, it's not like you wanted to throw those drawings away, right?
- It will help you answer questions you didn't know you had. Do you
want to know how to draw a feminine-looking nose? Copy one of
Phil Noto's illustrations. Would you like to
know how does a professional go from zero to done? You can watch
professionals like Jim Lee do a couple pieces in real time
online and even explain their
process as they go. Are you wondering how much attention to pay to
clothes and background? Once you notice that classical painters
couldn't care less about whatever is below your shoulders,
maybe you won't lose your sleep about it either.
Eventually, you'll start noticing that different artists have different
skills to offer. Maybe that guy draws cool hands, that other artist
draws clothes very well, and that third other one has very expressive
faces. Copying their work helps you understand the tricks they are
using, and adding them to your repertoire helps you develop your own style.
Rest of the owl
The final point is both super important and really difficult to explain
Are you familiar with the
how to draw an owl meme?
This picture is very popular in amateur art circles because it goes
straight to the core issue: that most tutorials will take your hand and
guide you step-by-step, but then they will let go at a critical step and
you'll fall down a metaphorical cliff.
The root of the problem, I think, is that one step where the book
tells you to "do what feels natural" or to "just keep going". What these
people forget, however, is that learning what feels natural takes a lot
I mentioned above is as bad as it gets: the instructions
tell you to "Draw some vertical and horizontal lines to plan your
drawing", which is completely useless advice that only makes sense once
you know which lines to draw and where. Whoever wrote that guide has
forgotten what it was to be a beginner, and their advice is really not
When that happens, you have two choices. You can look for a better
tutorial, or you can keep going, and see how far you make it. There is no
shame in trying and failing, and who knows? maybe you'll still make it.
Truth be told, there is a point at which no tutorial can help you and all
that's left for you to do is to just draw. But that only applies for
specific, advanced tutorials. It is the sad truth that, as a beginner,
you will often recognize bad tutorials only once you are stuck in them.
Nobody said the life of an artist was easy.
This guide ended up being longer than I intended, and half as long as
it should be. That's always going to be a problem: the average artist
does not let structure get in the way of their vision, and
any attempt at a "formal" answer will stop halfway (as I have complained
That said, if you would still appreciate a more structured approach, I have
heard good things about Betty Edward's book
Drawing on the right side of the brain.
And finally: have fun. All of this advice is useful for when you want to get
objectively better, but there's a lot to be said in favor of simply drawing
because you enjoy it.
Fair warning: in my experience, most artists never feel that they are
"good enough". This is a well-known bug of art.
I believe the process of "find defect, correct defect, repeat" is
why most artists I know are never happy about their work.
Seriously, go to an artist and tell them you like a particular
drawing of them - there's a good chance that they'll give some excuse
for why the drawing sucks.
I have been giving programming languages a lot of thought recently.
And it has ocurred to me that the reason why (reportedly) lots of people
fail at learning how to program is because they are introduced to it at
entirely the wrong level.
If you as a beginner search "Python tutorial" right now, you will get
lots of very detailed, completely correct, very polished tutorials that
will teach you how to program in Python, but that will not teach you
how to program. Conversely, if you search for "how to program", the
first results will be either completely useless advice such as "decide
what you would like to do with your programming knowledge" or they ask
you to choose a programming language. You might choose Python, in which
case you are now back to square one.
One of the founding principles of my field is that "Computer Science is
no more about computers than astronomy is about telescopes". In other
words, programming is a skill that it's expressed typicall using
programming languages, but it's not exclusively about them. And
programming, the skill underlying all of these programming languages,
To be a good programmer, you need to master three related skills:
- Understand how to convert messy real-life problems into a clearer
version with less ambiguities.
- Understand what the best practical approach to this problem is, and
choose one as a possible solution.
- Understand how to use programming languages and data structures to
implement that solution.
Mastering the first skill requires an analytical mind, and in particular
forces you to see the world in a different way. If someone asks you for
a program to keep track of how many people are inside a room, you need
to stop thinking in terms of people and rooms and think in terms of
numbers and averages. You also need to account for badly-defined situations:
if a woman gives birth inside the room, is your solution good enough to
increase the room count by one?
This part alone is quite hard. Some people make a living out of it as
software requirements engineers, meeting with clients and discussing
some approaches that would make sense. It also requires at least a
surface level understanding of the type of solutions that one could
realistically employ. If you ever wondered why your high-school math
teacher always asked you to turn apples and trains into equations and
solving for x, well, this is why: they were teaching you how to
solve real-world problems with simpler methods.
In order to master the second skill "choose a viable solution", you
need to read a lot about which problems are easy and which ones are hard.
There are some problems that a programmer solves daily, and some problems
for which the best known solution would still take thousands of years.
If you think that finding new solutions to problems is interesting, I
encourage you to go knock at the Math department of your nearest
university. They do this for a living, and will be very excited to have
Finally, the third and last skill "implement a solution" requires
you to write it down in a way that computers can understand.
Half the job requires understanding common concepts for structuring programs
(variables, databases, data structures, networks, and so on), and the other half
requires learning the syntax of your preferred programming language.
And here we reach the core of this post's answer. If you type
"Python tutorial" right now, what you'll get are very detailed guides on
how to acquire the second half of the third skill, also known as "the
unimportant one". Sure, programmers love discussing which programming
language is better and how not to write code,
but here's a little secret: in the larger scale of things, it rarely
matters. Some programming languages are better suited for specific
tasks, true, but the best programming language is not going to be of
any help if you don't know what you are trying to build.
At its core, programming is learning how to solve problems with a
specific set of tools. And while you do need to understand how to use
those tools, they are completely useless if no one explains to you how
to solve problems with them.
If knowing how to use a pen doesn't make you a writer, and
knowing how to use a wrench doesn't make you a mechanic, teaching you a
programming language and expecting you to become a programmer overnight
is just going to leave you confused and frustrated. But remember: it's
not you, it's them.
Appendix I: what does problem solving looks like?
Let's say someone asks me to "write a program to know who I have been
in contact with in any given day", a problem known as
that has been in the news in the past weeks. How would the skills above
come into play?
(Note: for the sake of simplicity, I am going to solve this problem
badly. It's a toy example, so don't @ me!)
The first step is to model this situation in a formal, more structured
way. Real people are difficult to work with, but luckily
we don't care about most things that make them human - all we care about
is where they have been at any point in time. Therefore, we replace
those real people with "points", keep track of their GPS coordinates at
all times, and throw all of their remaining attributes away.
We have now turned our problem into "tell me which GPS coordinates
(i.e., points) have been close to my GPS coordinates at any given
time". We can simplify the problem further by defining what
"close to me" means, and we turn the problem into "give me a list of
points that have been 1 meter or closer to me at any given time".
Next, we need to find a way to efficiently identify which points have
been close enough to our coordinates. Since there is a lot of people
in the world, we start by crudely removing all points that are more than
10km. away from me - this can be done very quickly, and it probably won't
affect our results too badly.
We now need to refine our search, and therefore we take a dive
into the geometry literature. After a quick look, I decided that building a
Quadtree is the best solution
for what I want to build. Note that I only have a passing knowledge of
what Quadtrees are, but that's fine: once I have a hint of where the
solution might be, I can search further and learn the details as I go.
And finally we get down to writing code. If our programming language
doesn't already include an implementation of a Quadtree data structure,
we might have to do it ourselves. If we choose Python, for instance, we
need to understand how to create a class, how to use lists of objects,
and all those other implementation details that our Python tutorial has
taught us. Similarly, storing the list of points will probably require
a database. Each database has a different strong point but, as I said
earlier, knowing which database to use is not as important as knowing
that some database is the right tool.
Let's now picture the same exercise in revers: imagine I come to you and
say "Write me a program to know who I have been in contact with in any
given day. Here's a guide on how to use Quadtrees in Python".
You wouldn't find that last bit of any use, would you?
As many other people around my age, I learned programming from a book. In
particular, I started programming with a 3-books series called Computación para
niños (Computers for kids). Volume 3 was dedicated to programming in BASIC, and
it opened the door to what is now both my profession and hobby.
That said, that book was also the source of a 25-ish-years-long frustration, and
that story is the point of today's article.
In the ancient times known as "the 90s", it was still common to get printed code
for games that you had to to type yourself. This book, in particular, included a
game called "Lunar rocket" in which you were supposed to (surprise!) land a
rocket on the moon. For context, this is how the game was sold to me:
And this is what the code looks like:
Suffice to say, the program never worked and I couldn't understand why. I spent
weeks trying to tweak it to no avail, getting different errors but never making
a full run. And no matter how hard I tried, I could never get a single picture
to show on screen. Eventually I gave up, but the weeks I spent trying to
understand what I did wrong have been on my mind ever since.
That is, until last Sunday, when I realized that I should go back to this
program and establish, once and for all, whose fault all of this was.
Problem number one was that the book shows pretty pictures, but the program is
text-only. That one is on me, but only partially. Sure, it was too optimistic of
me to expect any kind of graphics from such a short code. But I distinctly
remember giving it the benefit of the doubt, and thinking "the pictures are
probably included with BASIC, and one or two of these lines are loading them".
That was dead wrong, but I'll argue that young me at least had half of a good
idea. A few years later I would learn that the artwork and the game rarely had
anything to do with each other, a problem that
has not entirely gone away.
Now, problem number two... That code I showed above would never, ever work.
My current best guess is that someone wrote it in a rush leaving some bugs in,
and someone else typed it and introduced a lot more. In no particular order,
- Syntax errors: Line 130 has a typo, the variable name "NÚMERO" is invalid
because of the accent, and line 150 is plain wrong. The code also uses ";"
to write multiple instructions in a single line, but as far as I know that's
not valid BASIC syntax.
- The typist sometimes confuses "0" with "O" and ":" with ";" and " ". This
introduced bugs on its own. Line 150 (again) shows all mistakes at once.
- Error handling is a mess: if you enter the wrong input, you are simply asked
to enter it again. No notification of any kind that you did something wrong.
- The logic itself is very convoluted. GOTOs everywhere. Line 440 is
particularly bad, and could be easily improved.
- Some of the syntax may be valid, but it was definitely not valid in my
version of Basic. And seeing how my interpreter came included with the book,
I feel justified in not taking the blame for that one.
And so I set out to get this to run once and for all. The following listing
shows what a short rewrite looks like:
DO WHILE BARRELS>0 AND E<=364900 AND THROWS <= 30
PRINT "DISTANCE SO FAR="; E
PRINT "DISTANCE TO GO="; REMAINING
PRINT "SPEED"; V
PRINT "BARRELS LEFT="; BARRELS
PRINT "THROWS LEFT(MAX 30)="; THROWS
INPUT "NUMBER OF BARRELS?"; NUMBER
INPUT "DO YOU WANT TO BRAKE (Y/N)"; RESP$
IF NUMBER>BARRELS THEN
PRINT "NOT ENOUGH BARRELS!"
ELSEIF RESP$ <> "Y" AND RESP$ <> "N" THEN
PRINT "INVALID INPUT!"
IF RESP$="N" THEN
IF BARRELS <= 0 THEN PRINT "MISSION FAILED - NOT ENOUGH FUEL"
IF THROWS > 30 THEN PRINT "MISSION FAILED - NOT ENOUGH OXYGEN"
IF E>364900 THEN
IF V<5 THEN
PRINT "MISSION ACCOMPLISHED. ROCKET LANDED ON THE MOON."
PRINT "MISSION FAILED. ROCKET CRASHED AGAINST THE MOON SURFACE."
I think this version is much better for beginners. The code now
runs in a loop with three clearly-defined stages (showing information, input
validation, and game status update), making it easier to reason about it.
And now that the GOTOs are gone, so are the line numbers. However, and in order
to keep that old-time charm, I kept all strings in uppercase and added no
I also added some input validation: the BASIC interpreter I'm
using (Bywater Basic) will
still crash if you enter a letter when a number is expected, but that's outside
what I can fix. At least you now get a message when you use too many barrels
and/or you choose other than "Y" or "N".
It is only fair to point out something that I do like about the original code:
that the variable names are descriptive, and in particular that the physics
equations use the proper terms. If you are familiar with the physics involved
here, those equations will jump at you immediately.
If I had time, I would still tie a couple loose ends in my version.
A proper rewrite would ensure that the new code behaves exactly like the old
one, bugs and all. And there's a good chance that I have introduced some new
bugs too, given that I barely tested it. I also feel like making a graphical
version, using the original artwork and adding some simple animations on top.
But even then, I finally feel vindicated knowing that younger me had no chance
of making this work. Even better: the next exercise, a car race game, just gave
you a couple pointers on how to draw something on the screen, and then left you
on your own. That one would take me some time today.
Next on my list: finally read the source code of
Gorilla.bas. I know I
tried really hard to understand it when I was 10, so maybe I should get
closure for that one too.