Michal Hořejšek

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Domovská stránka https://blog.horejsek.com/
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Tale of Two Brains

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 …

Michal Hořejšek | Včera 9:45 | # Nové 

Rewrite stuff

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 PHP, I rewrote it again. PHP imports, again. Database. JavaScript…

Michal Hořejšek | 13. 7. 2018 15:15 | #

Zápisky z cest: Paříž

Den první Organizace Francouzům moc nejde. Spíš vůbec nejde. Jejich salsa festival je nejvíc zmatený s nejvíce technickými problémy, co jsem zažil. Už od vstupu do hotelu nebylo jasné, kam jít, a tahle nejasnost se táhla celým festivalem. Stejně tak to…

Michal Hořejšek | 29. 6. 2018 9:55 | #

Let's dance during the day

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…

Michal Hořejšek | 29. 6. 2018 9:15 | #


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 …

Michal Hořejšek | 26. 6. 2018 12:45 | #

We need new types of salsa events

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…

Michal Hořejšek | 17. 6. 2018 23:15 | #

Zápisky z cest: Paříž

Den první Organizace Francouzům moc nejde. Spíš vůbec nejde. Jejich salsa festival je nejvíc zmatený s nejvíce technickými problémy, co jsem zažil. Už od vstupu do hotelu nebylo jasné, kam jít, a tahle nejasnost se táhla celým festivalem. Stejně tak to…

Michal Hořejšek | 11. 6. 2018 9:55 | #

Chrome is new IE6

I just realized that on my personal device I have only Chrome. I mean, not installed only Chrome, but sometimes I cannot even install anything else. I have Android and two Chromebooks. That's it. When I created app for salsa dancers, salsa-calendar.com,…

Michal Hořejšek | 5. 6. 2018 18:40 | #

How I see salsa community

I'm shortly in salsa community (four years now), so, please, if you know more, feel free to correct me. Anyway, even if something is not 100 % correct, this is how it feels to me. To me, on2 salsa dancer located in Europe. Salsa community has two main…

Michal Hořejšek | 30. 5. 2018 11:25 | #

Galactic Dangerous (im)PRobability

25th of May. The celebration of Towel Day since 2001 and GDPR, regulation in EU law on data protection, since today. I would start with the phrase on the cover of The Hitchhiker's Guide to the Galaxy: DON'T PANIC! It's not going to be bad. Definitely…

Michal Hořejšek | 25. 5. 2018 0:15 | #

Zápisky z cest: Irsko

Den první Dublin. Už od příletu na mne dýchl svou irštinou, irskou angličtinou a stejně tak štiplavým počasím. Sotva jsem udělal krok z letištní haly, nastal jeden zmatek za druhým. Zjistit kterým autobusem se dostat do města není vůbec snadné. Ani když…

Michal Hořejšek | 22. 5. 2018 17:20 | #

I'm white hetero men around 30, should I be worried?

We, as humanity, don't accept women well. We are a racist. We ignore old people. Young ones as well. We don't support minorities. We refuse to see working gay family. We hate other's religion. And political opinions. … We should fix all of that. We are…

Michal Hořejšek | 19. 5. 2018 15:20 | #

Zápisky z cest: Itálie

Den první Stejně jako loni, i letos vyrážím na Mamboland. Jedinou změna je, že letenku nemám do Milána, ale do Benátek. Abych zůstal hodným přítelem, vzal jsem s sebou na začátek cesty i Lenku, kterou „deptám“ už od začátku cesty. Například jsme neměli…

Michal Hořejšek | 14. 5. 2018 17:50 | #

Google Assistant 2018

Originaly I wanted to type Google I/O 2018, but… All new features announced at the Google I/O keynote this year are pretty cool. Check them out: I love many of those new features. Like usage of their AI in medicine, conversion of photos with document to…

Michal Hořejšek | 11. 5. 2018 0:05 | #

What's wrong with salsa festivals

I attended many salsa festivals in last two years and I'm already getting bored of them. I'm starting to prefer smaller events in the usual time zone. Do you want to know why? Because of… poor organization. In Czech we have a famous joke from one play…

Michal Hořejšek | 2. 5. 2018 18:25 | #

Zápisky z cest: Berlín

Do Berlína jsme jeli na salsa festival vlakem. ECčkem, kde jsme měli pohodlí, cestu si mohli krátit v jídelním voze a nemuseli v pátek večer někde stát v koloně. Protože jsme stáli v Drážďanech na nádraží. O den dřív byla v Německu neskutečná vichřice,…

Michal Hořejšek | 25. 4. 2018 23:40 | #

We need to remake the Internet

I really like the way Jaron Lanier in his recent TED talk talks about how Internet needs to be redesigned: “And so I can't call these things social networks anymore. I call them behaviour modification empires.” “I don't believe our species can survive…

Michal Hořejšek | 24. 4. 2018 19:20 | #

Smart design

In a world with people, we have a Cambridge Analytica scandal. While the rest of the world is full of smart design. Watching any series from David Attenborough (even if he is only narrator) full of nature is so peaceful, amazing and educational… When I…

Michal Hořejšek | 27. 3. 2018 1:00 | #

The ultimate manipulative technique

First, you have to start by acknowledging feelings of other side, e.g. “oh…” or “I see…” Then name it simply as “that sounds frustrating!” or give a fantasy by stating something like “I wish I could make it for you right now!” By now, they should be on…

Michal Hořejšek | 26. 2. 2018 10:35 | #

HaaS: Honeypot as a Service

My team at CZ.NIC finally introduces a stable version of HaaS, Honeypot as a Service. Who knows Czech can read it in an official blog post (edit: English version). For non Czech readers, CZ.NIC is mainly known for Czech domain registry, but does much…

Michal Hořejšek | 19. 2. 2018 15:25 | #

Dancers, don't be sorry

Well, be sorry. Of course when you hit or step on someone, apologise. Or when you refuse to dance with someone, it's also better to say no with sorry than without it. But don't feel bad at all in cases you just didn't catch some move. It's totally all…

Michal Hořejšek | 18. 2. 2018 19:25 | #

Django CSRF bug

We had this problem: our application worked well on desktop but on phone any action had CSRF problem. Mm, strange. Soon we discovered it's problem only with Android. Later we were sure it's only Chrome on Android. Even stranger! Next step we did was to…

Michal Hořejšek | 8. 2. 2018 17:40 | #

Can you help with a political question?

Ok, so I have those struggles. I think I'm not alone. Actually, I know I'm not. Let's start with a little bit different question. In how many fields anyone could be an expert? My personal feeling is like about three, but the average will be definitely…

Michal Hořejšek | 22. 1. 2018 13:55 | #

Why I don't trust recommendation systems

I liked Google Now. Liked. With the new Android it's changed and isn't very useful anymore. Before, you could just swipe to the left on your home screen and see all important stuff. Like how much time it takes you to go to work right now. Or when is…

Michal Hořejšek | 18. 1. 2018 17:25 | #

How Twitter support works

I had problem to log in into my Twitter account because I couldn't get SMS code so I sent them message about that. They responded: Hello, Thanks for writing in. Many people who have reported issues with login verification have found the following tips…

Michal Hořejšek | 30. 12. 2017 18:05 | #

Zápisky z cest: Šibenik

Už jsem tu jednou psal o návštěvě Chorvatka, to bylo s cílem týden se plachtit na vodě. Chorvatsko mne hodně překvapilo, ale stále mne neláká jeho návštěva jako taková. Přesto jsem tam byl už třikrát, po druhé a po třetí v Šibeniku kvůli skvělému salsa…

Michal Hořejšek | 26. 12. 2017 18:41 | #

Whisky I like

I will not give you a professional analysis of whiskies. I'm really bad at describing the flavor of food and drinks. Take it just as my few notes which can maybe help you to find something new you could also like. Let's start with something more soft…

Michal Hořejšek | 20. 12. 2017 16:10 | #

Open letter to salsa organizers

Dear organizers, I like to travel very much. It's amazing that I can have dancing as an excuse to go so often. Two-in-one! Actually, it's three-in-one. I dance for awhile now so it means I travel more because of people I can see there than because of…

Michal Hořejšek | 12. 12. 2017 13:55 | #

It doesn't have to be scrum

I have a feeling that when there is something about agile, it means scrum or kanban. But it's not just that. It's definitely one way how to be agile, but it's not a synonym. The most important thing about being agile is communication. You can actually…

Michal Hořejšek | 4. 12. 2017 9:05 | #

Movie by Artificial Inteligence

Not long ago I was writing here about how I'm not afraid of artificial intelligence. Then my colleague sent me this video of how AI created a sci-fi screenplay… I'm going to add just one note: I'm sure one day we (as humanity) will look back to this…

Michal Hořejšek | 30. 11. 2017 19:05 | #