In case you want to learn something what is not easy to
read, but interesting in the same time, I can recommend
book Brief history of time
by Stephen Hawking. I learned a lot about our universe and
time. And even more I learned how much we don't know.
It's amazing how philosophers could philosophize about
the meaning of life and so, because science was simple. There
was us, on the planet, flying around the Sun, in some galaxy.
Now, now it's a lot of math. As Hawking wrote in the book,
nowadays only a few people can understand that complicated
math in the background of everything, without simple
explanation for the rest of us. It will take time to find
still missing ultimate theory which can be simplified for
all of us.
There is very good quote:
If you can't explain it simply, you don't understand it well enough.
-- Albert Einstein
The best scientist still struggles. And this book is the
best you can get to understand at least little bit what
scientists are trying to achieve.
Salsa is a special place. Non-dancing people have problems to understand
that. They are afraid their dancing soul mate is cheating on them.
I don't blame them. :-)
Not because we do. Well, of course, there will always be someone like
that. But because we act like we do.
I was kind of flirting with all girls I was dancing with. And many of
them were flirting with me as well. I didn't tell them anything about
whom I'm dating and girls didn't tell me neither.
All my friendships were very weak based on that innocent flirting.
Supposedly to help keep friends around to have many people to dance
Do you recognize yourself in that as well? :-)
I remember once how my girlfriend kissed me before we entered the party
in Paris saying “last kiss so you are not embarrassed and can dance
with anybody”. Or something like that.
Well… now I understand it wasn't for me, but for her! Now, because
I stopped being afraid to admit I have a girlfriend. Guess what happened.
All girls told me after that they have a boyfriend as well.
I think for some girls it has to be a big relief. For me it was amazing.
Thanks to that I can discuss with my friends anything and it's more honest.
Friendship then can be better. :-) At least mine is.
It's better, but I will not tell you who is my girlfriend anyway. Because,
statistically, men don't dance much with a girl when they know she has
a boyfriend (edit: mostly on festivals than local parties as I heard that
from friends on festivals). Not sure if it's because of habits or absence
of sex opportunity for that night…
I know one thing, guys can be honest with a profit. Girls have harder
situation and I wish we could dance without a need to flirt all the time.
My team was working on CMS solution based on Django and we needed to have
private files. Those files are also video files which we would like to stream
to HTML5 player. Problem was, Django is not nginx or apache. It's even wrong
to want it. We were sad our private files are served slowly without streaming
feature and actually not working in every browser.
Because of the last issue, we were forced to look for a solution and we were
surprised it has been fixed long time ago with a very sexy solution! In nginx,
it's called X-Accel,
but usually you can find it as X-Sendfile.
Because I didn't know about it before and wasn't able to set it up correctly
for the first time, I decided to share it with you. :-)
It's just new section in nginx and special header in your application. Usually
without this feature, you would set up a handler in your app, check permission
and return data directly. With X-Accel, you don't return data, but special
Let's say you want to have two URL in your app, /media for public media and
/smedia for private media. Then in your nginx you will need usual section
for public media, and two new sections for private ones. /smedia is visible
outside and headed to your app and /pmedia is visible only internally thanks
to internal configuration.
Now you need only to update your app to not return actual data, but header with
/pmedia location. When nginx finds in the response X-Accel-Redirect header,
it will use this new location. Because this new location is returned from the
(internal) app, it will allow to use also internal locations.
For example, in Python with a Flask it could look like:
@app.route('/<file_id>')defserve_private_media(file_id):# check access to the fileresponse=make_response()response.headers['X-Accel-Redirect']='/pmedia/path/to/file'returnresponse
Note that path is starting with /pmedia and then the path is relative to the
root of the directory with private data, in our example to /data/media/private/.
I read mostly educational books which I don't read cover to cover,
word by word. My reading is probably more scanning than reading.
It's very good for this kind of books (as you only read when you
don't understand or it doesn't match what you expect to be there),
but it's a very bad habit for any other types of books.
I don't remember the last time I enjoyed reading every word of the book.
It has to be a long time. But finally it happened again with a book
Talks With T. G. Masaryk.
Not sure if it's so good in English as well, but I want to let know
also people outside the Czech Republic because not only the form of
writing is good, content is very good as well.
It perfectly describes how it looked like here, in Czech Republic,
before and during the First Czechoslovak Republic. Actually, not only
here, but also around. At least the relationships between countries
It's not uncommon to hear people complaining how bad it is nowadays.
How it was better before. Well…
A lot is better now. We have plenty food. Books. Books in our language.
All available in our pockets. We don't know what is war.
And much more is the same. Many times I heard it's better to travel
these days, but people were traveling a lot before as well. Even 100
years ago people were complaining about cities and that countryside
is better. Problems with the equivalence of women are the same, kind of.
But sure, something is worse as well. Looks like people knew more
languages than today.
For me is also interesting how he saw America or Russia. Americans
had practical optimism. Russians had disgusting politics, but very kind
people. Masaryk said we should learn from everyone. Including ourselves
and our history. Well, the same can be seen today and we learned nothing!
Or the importance of religion; how church and traditions helped to
country life. Also politics; why we have so many parties when America have
only two. Thoughts about communism and where it can be used (only in family
or small friendly town).
And about life. How important is to have a life rich of events and inner
progress. So read this book as this one is really good. :-)
I produced a lot of code. A lot. I tried very hard to make all that code nice.
Several times I was doing some cute features. Parts of the code which are not
needed for the required result, but feels right. Or cool. Many times in those
cases I regretted that after.
The cute feature could be:
Organize small bits (instead of keeping them in one file until it gets bigger to see which structure makes more sense)
Layers of abstraction (instead of tight it together until there is a need for the abstraction)
Future functions (instead of waiting for the time functionality is really
Today isn't New Year, but I'm taking resolution regardless:
I will not do any cute feature again!
Only constant is that requirements mutates. I will try harder to keep the code
easy to change, not overengineer stuff, and not trying to make it nice as much
I recommend you the same but I understand you need to come to this point
I wanted to be alone. But one girl disagree with me. She is trying very hard
so I can love her. She is using a lot of dark magic! Many of them are
explained in the following seminar. It's very good seminar. I'm not sure why
she wanted to watch it together as I know now her secrets. :-) Anyway,
I learned a lot and I recommend it to anybody. Doesn't matter if you are single
or not. <3
(In case video is not available, search for Mark Gungor, Tale of Two Brains.)
It's fun, find a time to watch it. No excuses. If you have excuses anyway,
or you want to remind what's there, there are my notes:
Men and women think differently. Men have separated boxes with “nothing box”, women connect everything with emotions.
We have different meanings for the same words. For example 5 minutes, nothing (nothing vs. something) or sigh (all right vs. you are an idiot). Notice them!
Men do filter words, they need precise orders! Also, they need to be asked more than once.
Women tend to keep talking to the guy even after leaving the room. Or even the floor! Girls, don't do that.
Men are interested mostly only about “place of happiness”, but to that place the way goes through the heart. Guys, be nice to the girl, and girls, don't give him anything for free, barter with him.
Because of that… don't ask men why he is doing things. You don't want to know.
Men can be trained. We want to be rewarded! Girls, appreciate what he does. And guys, do small surprises so girls can appreciate you.
Women don't make any difference between small and big things. Cleaning whole house and making the bed will gain the same points!
Guys, don't surprise a girl. Tell everything in advance. She will then talk about what you prepared and for every share you will get points as well for free!
Men need to be appreciated and believed in or he will share his dreams with other girls.
Men think of themselves as perfect, women as ugly, fat, … but attractive woman is a confident woman. Don't compare yourself with photoshoped magazines.
Some people, mostly women, don't have the desire for the sex until they have it. Guys, don't ask and be The Initiator!
Guys, learn to “climb the palm tree”. Prepare girl by touching there and there a whole day.
Average time for women is between 7 and 14 minutes. For men, only two. Girls, you need to have regular sex so your guy can keep up.
Porn doesn't work.
Learn to forgive. It's not for the partner (or other person), it's for you. If you will not forgive, only you will be unhappy. It's the reset button in case of emergency.
If you want to learn a programming language or concept or framework, rewrite
stuff. It's simple as that.
I started with HTML. Then I discovered CSS, I rewrote my stuff. Then I learned
prototypes. Python, whohooo, happyily to do it again! Python classes, again!
Python metaclasses! I tried Ruby. I rewrote it to Python again. Haskell.
Functional world is different then I thought, again. Monads. Monads are cool!
And so on.
I learned everything by trying new language or concept, fail to do it right and
then do it again, more properly.
In the last weeks, one colleague wanted some small help to learn pytest.
I gave him some basic ideas first. I didn't think of all the details properly,
my mistake, and the result wasn't perfect. He had to rewrite it again. But he was
glad as he could understand pytest much better!
Also, I have new colleague learning to be a computer programmer. I let her to
write some code in very basic Python and then I showed her tips how to improve
the code. So she can better understand what higher level does. Hopefully. :-)
So, don't be afraid. Rewrite stuff.
In the end, writers do the same thing! Without that hardly anything would be
Hm. I didn't rewrite this post. Well, don't listen to me! :-D
Last week I wrote about the need for new types of salsa events
to have better diversity. To have more amazing places to learn and even
more awesome places for social dancing. Problem is, it's not going to happen
anytime soon. When I discuss this topic with friends, it's something really
missing. I would love to have some “social weekend” without waiting. Also,
I want to have proof it can be really good.
Well… let's do it now!
All my friends (and future ones as well), let's sabotage the night parties
at festivals where is social during the day.
In Šibenik I purchased parties, but I will try to not attend them. I will start
with a lunch, swimming and then I will be available at the hot spot. After hot
spot I will go again into the water or take a shower and have a dinner. After
dinner some fun and I will go sleep soon. In the morning I will get up at half
past six, eat a little bit and attend end of the night party which will be
already outside. And repeat again.
At followings marathons I will come early, be there the whole day, not leaving
after dinner (to sleep as many people usually does to be able to dance during
the night), and will leave before midnight to sleep normally. I will dance same
amount of hours as others, but without salsa lag,
with more space and with the slower songs (as is usual during the day).
My friend Anne (hi!) already does that. My girlfriend Lenka (hi!) began that
during the last Prague's marathon and she was more than happy! Other friends
promised me they will do that with us as well.
Will you join us?
I have mostly girls on board. We need some men as well. :-)
Let's prove it's possible!
If it will go well, I will try harder to convince someone to prepare salsa
event like we like it. Would be great if you would do that with me as well,
but with organizers around you.
I was thinking how I could help the World if I would be sent back in time.
Let's say I would invent a time machine by accident and send myself 100 years
back. Or 200 years. Or even a thousand years back. Would I be even able to
survive at least for a day or two?
I don't know. I know that I know many things. But almost all of them are
not much relevant for a year 1018. It's useless to know how to create web
apps when I'm not able to create whole computer and network.
And it's ok. We are living in a time when everything is in books and on the
Internet. That Internet is with us everywhere. Instead of learning all details
we need to learn only how to analyze the problem and know how to find answers
in sooo many available resources.
Thanks to all that knowledge and improvement in technology, we can live in
cities and enjoy many possibilities. We can enjoy the life without need
to know all details and without hard work on the field. At least those who
can release themselves from the technology,
Maybe you don't want to accept it, but we are changing a lot because of that.
I believe many of us would have a lot of challenges just by going to live back
outside the city, to the country. We are adapting to the city life with the
Internet available everywhere.
But… we are not able to keep up. Everything is changing rapidly. There are
many things happening around. Not mentioning our body. Our body is not meant
to live forever. Healthcare helped a lot to prolong our life, but we are
hitting the limits.
Many people say AI will rise and replace us. Well,
I don't think so. It's a very long way away. Sooner
we will be able to fight back. Kind of. Because sooner we are going to be
cyborgs. It's not going to be AI vs. humans. It's going to be marriage.
Many companies are trying to come up with a good AI for many problems. The
biggest fields probably right now are autonomous cars and voice assistants.
It's just a matter of time when this still primitive AI (but with great
capabilities anyway) is going to be used in mechanical parts of our bodies.
To sum it up: we were not able to live without books. Then we were unable
to live without cities. Not long ago we added to the list the Internet.
And soon we will not be able to live without body enhancement. Doesn't feel
like natural progress, but looks to me like inevitable progress.
Then it will be even harder to go back in time. Maybe that's the reason why
nobody came back. At least we don't know about it. But I suspect Leonardo
da Vinci is from the future. I'm always amazed what he was able to achieve
in his time! He had to cheat! :-)
Not long ago I wrote about how I see salsa community.
It's a good idea to read it first if you haven't already. I will wait. :-)
I said on2 community is kind of serious competitive VIP community.
In a feedback, few people agreed, more had some issue. Mostly because
it's different in their location. As I said, I'm located in Europe,
specifically in central Europe, and I have experience mostly from festivals
in Europe, with trips to Russia and
New York (which was very different, but also brief).
Anyway, I think one of the problems is lack of good salsa events for
people seeking to enjoy the dance and the music. In Europe are many festivals,
but almost all of them are not very good for social lovers. I'm not saying
all those festivals are bad. In the end, everyone of us has different taste.
I want to say, we need to improve diversity.
First, I will try to make a list of what a social dancer (like me and
my friends) likes:
Slower songs, cha-cha as well (not bachata)
Not dancing until or even from(!) very late hour
A lot of water, less of alcohol
And yes, social dancing
Have I mentioned social dancing?
Just to be sure: if you like, for example, to dance from 3 till 8 am and
drink a lot of alcohol, it's all right. Visit almost any festival and you are
fine. Not everybody does, though.
So, let's begin with…
We have marathons which meets everything but late hours. We don't want
to have salsa lag. So why not to try
relay race. Those who love to dance during the night can dance during the
night, I will happily dance during the day!
Ok, this is a crazy idea. :-) Now, really…
I heard this one from a friend of a friend. Just one or two hour long party
and dance as much as possible. Another response to marathons. Ok, again,
this one is not meant to be serious. :-D
Anyway, I tried this concept lately at after party of Prague's salsa marathon.
Also at regular local party as I have a lot of other things to do as well lately.
It's a lot of gym. A lot. But it was also fun. It could work sometime!
I don't have the name for this one. It could be a day marathon. Or half
marathon. Probably I prefer social weekend. Social fun could also be
The concept is this: it starts in the morning, sometime like 10am, and the last
beat of the last song ends at midnight (or even sooner! definitely not later).
It would be partly inside and partly outside so dancers could have fresh air
during the dance. Cocktails with umbrellas. Water. No rush.
Sorry, I started to dream about salsa festival in Šibenik, two years ago,
with a tent, during the day instead of night. Yeah, that would be perfect!
Soo… I think event of type TBA (Todos los Bailes con Amor? :-)) is concept
missing right now. From my point of view, it's the future. We need to have
more of “marathons” and unlock them for everybody. We need to share our joy
of dancing with anybody. Not just with each other.
Non-dancing people don't understand to all night long dancing and all day long
sleeping. New faces have to be allowed to experience this joy of dancing as
well. We shouldn't hand pick dancers. Maybe it can work in tango marathons, but
salsa is different. Let's share our passion. Then our salsa community can grow
We have a lot of festivals focused on learning fast and complicated patterns
and for the night animals. That's good. Also, there is Mamboland,
a great new concept for learning. But now we need also places to dance. Socially
dance. With a smile. Having fun.
To sum it up, standard festivals are fine, but both workshops and parties are
mostly average. We need more festivals like Mamboland to have amazing places
to learn amazing stuff. And more festivals like marathons to have the best
social dancing possible. Even better to see some “social weekends”.
P.S.: If you want to use some ideas, please do! I don't have the capacity to
create my vision of salsa weekends. At least now. Feel free to organize
something like that and feel free to use my ideas for the name. Computer
programming have the term open source, this is open dance! But don't forget
to invite me. That's the only rule! :-)