‘old’ Series



  During my childhood there was this channel called “Rede 21”, it was part of Bandeirantes group and they would broadcast 60s/70s shows: Bewitched, I dream Jennie and Star Trek. But also 80’s shows, as Knight Rider.

Elizabeth Montgomery & Martin Landau

   I found this video on youtube and all this memories came back!!! I miss all those shows very much!!
After a quick search I fould actually that many of them, almost all actors died already. Very sad. This includes Bill Daily, actor on ‘I Dream of Jeannie’, which died some days ago, very recently.  Barbara Eden is alive and well!!  I think it is time to use ‘Saudade’, this portuguese noun to describe when you miss something.


Implicit Types on scope declaration



One thing that is ambiguous to me is the implicit types of languages like python and c#.  This makes Python so powerful but also very confusing AT THE SAME TIME! Python and C# are very different, one strong typed and another is weak, but it’s interesting to compare how they handle a non-explicitly variable declaration.

Btw, I always use the Microsoft official guide, it’s quite explanatory[1]. Yes, I know proprietary stuff, but come on, C# is very useful and powerful too. The performance especially got better recently (a couple of years that is getting better already and GC too)


On the declaration of the variable, we don’t need to explicitly say what it is, since it’s weakly typed. On the example below, x and y are different types and are not explicitly stated.

x = 5
y = “John”

 AND FOR ANONYMOUS VARIABLE: In python to use an anonymous variable, we use the _ –> underscore operator.


C# is a strongly-typed language! However, in C# we can use one trick to make it more flexible by using the Implicitly Type VAR!!
By using the keyword var on the declaration of a variable. It’s up to the compiler figure out what type of variable is actually on the declaration. But interestingly it must be declared and used on the same statement.

var i = 10; // Implicitly typed.

int i = 10; // Explicitly typed.

It’s possible to download straight the Programming Guide from Microsoft here [2].

In a table

Everything looks better in a table, so we have:

Python C#
Anonymous _ var
Implicitly N/A var


[1] https://docs.microsoft.com/en-us/dotnet/csharp/index



Online MBA



Back when I was in the High School in Sao Paulo, I remember the release of Apprentice, with Roberto Justus. I watched every single episode! The episodes usually started at 10h40/11h pm. It was a bit late for me, but my mother used to watch me with. It was really fun indeed. This was back in 2004!


In Brazil, The Apprentice, with Donald Trump, was released by Record channel and there are actually 10 seasons. 8 with Roberto Justus, 2 with Joao Doria Junior. There is some debate around who was the best but it’s irrelevant.

Anyways, this Post is about Online MBA. Well, I consider all these series as an Online MBA, since all the episodes are online on YouTube. The first one has bad quality and the second one is incomplete, but I all the others are ok. it’s all in Portuguese-br though.

Watching the American version after watching the Brazilian version is quite interesting. I bet you can find one in your one mother language.


Below is one episode, Apprentice 4th session.

Linus is back/EBPF rules



I usually follow computer science/informatics news via PodCasts, as I follow space news via some youtube channels. Let’s go to the most important news of the week actually.

Linus is back

Well, and he is back to the kernel! finally! Great news!


I remember SuchakraPani explaining to me about eBPF and how this package filter was extremely strong and flexible. Linus did comment on this on his return and how this is strong nowadays.

IBM buys Red Hat

This news leaked on Sunday and it’s that 32bi to buying Red Hat. Let’s see how Red Hat will change its structure.