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Gustavo Bittencourt
Attended Pontifícia Universidade Católica do Rio de Janeiro
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277 dias se passaram deste post abaixo e o cenário Colapso aconteceu, porem de uma forma muito mais longa, dramática e conturbada do que se poderia imaginar.

Infelizmente, os políticos no Brasil não consideram a renúncia uma saída honrosa, digna e que preserva o verdadeiro interesse público. Isso vale não só para Dilma, mas também para o Renan, Cunha e até para o Temer.
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Dois artigos do Merval Pereira tratam de um estudo desenvolvido pela Macroplan apontando 3 possíveis cenários para a crise atual. Os cenarios são denominados o Colapso, a UTI e a Recuperação. Pretendo voltar a este post regularmente como parâmetro para acompanhamento da crise.

COLAPSO
Avaliado como o mais provável, há  três desdobramentos possíveis.

Terceirização  - esvaziamento do poder da presidente com a ‘terceirização’ da economia para a equipe econômica e da coordenação e gestão da política para o vice Michel Temer, do PMDB.

Neste caso, ainda esse ano, haveria uma reconfiguração da equipe de governo com uma recomposição da base de sustentação parlamentar e redução de incertezas; resgate parcial do  ajuste fiscal e financeiro abrindo-se perspectivas para uma retomada do crescimento, a partir de 2017, e declínio da inflação, em 2016. A operação “Lava-jato”, neste cenário, teria efeitos impactantes, porém diluídos no tempo.

Impeachment da presidente Dilma, com acentuação das expectativas econômicas negativas imediatas. O ajuste fiscal fracassa, as “pautas bomba” prosperam, as expectativas negativas dos agentes econômicos e a insatisfação da sociedade se acentuam ainda mais e a perspectiva de inflação supera os 10% ao ano.  

No campo político há total perda de confiança da presidente e a base de sustentação desaparece. Este cenário só se torna provável em três hipóteses: (a) se as contas da presidente forem rejeitadas no TCU e no Congresso por conta das “pedaladas fiscais” de 2014; (b) se o  TSE reconhecer financiamento ilegal na campanha eleitoral da presidente e vice, em 2014; ou (c) se os efeitos da operação  “Lava-Jato” alcançarem inequivocamente a pessoa da presidente.

Por enquanto, este cenário parece tão improvável quanto a de uma rápida recuperação da popularidade da presidente, mas uma mudança  radical nas próximas semanas não pode ser descartada.

Renúncia da presidente Dilma por motivos semelhantes ao cenário de impedimento. Considerado o passado de militância da presidente ou os traços de sua personalidade, este também é, para a Macroplan, um cenário de probabilidade remota, mas que não deve deixar de ser considerado.

UTI
O cenário batizado  de “UTI” configura uma agonia prolongada da economia e do governo - lembrando o período Sarney – e tem alguma probabilidade de ocorrer:  aponta para altos e baixos no ajuste fiscal; crescimento econômico entre -2% (2015) e + 2% (2018) e expectativas de inflação sempre em torno de 6,5% ao ano a partir de 2017, com estagnação do emprego e renda.

Neste cenário a impopularidade da presidente fica mantida em patamares altos e também mantém-se em baixa a confiança no governo e no seu partido, com consequente fragmentação da base de sustentação parlamentar, que opera na base do “toma lá dá cá”.

A operação “Lava-jato” tem efeitos amplos, mas não chega a atingir a pessoa da presidente. Este seria o pior cenário para o País, do ponto de vista econômico e social, pois significará a consumação de outra “década perdida”.

RECUPERAÇÂO
Outro cenário antecipa uma  ‘recuperação progressiva do Governo Dilma’ na economia e na política que, na melhor das hipóteses, somente ocorrerá a partir de meados de 2016, com declínio da inflação, recuperação parcial do emprego e renda (a partir de 2017) e da popularidade da presidente que, no entanto, dificilmente chegará a níveis parecidos aos do primeiro mandato.

A operação “Lava-jato” neste cenário tem efeitos limitados e diluídos no tempo. Este, contudo, é hoje o cenário mais improvável na avaliação dos especialistas da Macroplan. 

Referências
http://blogs.oglobo.globo.com/merval-pereira/post/sem-saida-facil.html
http://blogs.oglobo.globo.com/merval-pereira/post/colapso-anunciado.html
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Profiling in Go is not difficult. Awesome presentation.

h/t: usernameliteral in reddit (https://www.reddit.com/r/golang/comments/4k8kf1/profiling_and_optimizing_go/)
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To watch the trajectory of the last Falcon 9 launch is really cool.
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vim-go text objects
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Sharing now to remember someday in the future.
 
Why Does Gravity Wave?

LIGO announced that they have detected gravitational waves from a black hole merger. If verified it will be the ultimate confirmation of Einstein’s theory of general relativity. But what are gravitational waves, and why is their detection such a big deal?

Water is perhaps the most common example of a wave. Drop a stone into a calm pond and you can see ripples expand over the surface of the water. This occurs because water is a fluid. When the stone is dropped into the water, it pushes the water around it out of the way. The water closest to the stone is pushed into the surrounding water, causing it to bunch up a bit. As the bunched up water tries to go back to its original state, it pushes into water further out. Thus a ripple moves through the water.

This is the basic process of any wave. A disturbance in a material affects the region around it causing the disturbance to move through the material. Thus we have ripples in water, sound waves in air, and even seismic waves from earthquakes. Since it takes time for the disturbance to move through the material, waves move through the material at a finite speed.

For a long time it was thought that waves could only move through a physical material, like sound through air. When it was shown in the 1600s that light travels at a finite speed, it sparked much debate over whether light was made of “particles” as Newton suggested, or whether it was a wave traveling through some material. In the early 1800s experiments showing light’s wave behavior seemed to answer the question in favor of waves. We now know light’s behavior is more subtle than that, but in the 1800s it seemed clear that light was definitely a wave. So there must be a material through which light propagates.

The most popular candidate was known as the luminiferous aether. The difficulty with the aether was that it would have to be completely invisible and insubstantial to physical objects, so there was no way to detect it directly. The only evidence that the aether existed came from the fact that light travels in waves. Odd as the aether was, it clearly had to exist since waves always move through some material.

Then in the late 1800s it was found that the speed of light was always the same regardless of ones motion through the aether. This is a deeply un-wavelike behavior. If light really moved through the aether at a particular speed, the Earth’s motion through the aether should make the speed of light appear faster or slower at different times of the year. An unchanging speed of light meant our assumption about the aether must be wrong.

In the early 1900s it was shown that light waves could be explained through special relativity. Instead of moving through a material, the energy fields of electricity and magnetism could be disturbed like a fluid. Light waves are thus waves of electromagnetic energy moving through space. Because physical objects are made of charged particles that have electromagnetic fields, this meant they could never travel through space faster than the speed of light. Relativity showed us that waves didn’t need a physical material to travel through. Waves could move through fields of energy.

But if physical objects couldn’t move faster than light, what about gravity? In Newton’s model of gravity, masses exert forces on each other instantly. As a result, energy could pass from one mass to another with infinite speed. It seemed odd that light energy could only travel at the speed of light while gravitational energy could travel instantly. This puzzle led Einstein to develop a general theory of relativity.

The basic idea of special relativity is that no frame of reference can be favored over any other. This allows the speed of light to be the same in all frames of reference, but it does so by making the behavior of space and time relative to the observer rather than an absolute background. Even the concept of “now” is relative. In general relativity the central idea is the principle of equivalence. Since all bodies fall at the same rate regardless of their mass, a body floating freely in space must be equivalent to a body falling freely. As a result, gravity is not a force between masses, but rather an effect of spacetime curvature. Under Eisntein’s model space and time become flexible and relative, and take on a fluid-like behavior. Masses moving through space should create disturbances in spacetime, just as running your hand through water creates ripples. If general relativity is correct, then there must be gravitational waves.

Over the years various tests of general relativity have confirmed the theory works, and so it has widely assumed that gravitational waves exist. But observing gravitational waves directly has been notoriously difficult. Even the strongest of gravitational waves would be extraordinarily weak, and since they are a warping of spacetime itself, effects such as the finite speed of gravity are impossible to measure. The best evidence we’ve had so far has been indirect evidence. In the 1970s observations of a pulsar orbiting another star found that it slowly spirals closer to its companion. According to relativity this is because gravitational waves radiate away from the binary system, causing it to lose energy and spiral closer together.

But without a direct observation of gravitational waves, there is the chance that general relativity could be wrong. We could, for example, come up with a model that gives us all the effects of Einstein’s theory without gravitational waves. It wouldn’t be as elegant as general relativity, but it would work. Gravitational waves are an absolute necessity for general relativity, and if they don’t exist the model is wrong. So even though we expect gravitational waves to exist, without proof there would always be a small bit of doubt about relativity.

That’s why we’ve been looking for gravitational waves for so long, and that’s why the result is so important.
What are gravitational waves, and why is their detection such a big deal?
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Amazing way to visualize several concurrency strategies.

h/t to divan0 (+Divan Visagie) on reddit
https://www.reddit.com/r/golang/comments/42yc77/visualizing_concurrency_in_go_with_webgl/ 
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For latter reading.
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Interesting cased. 
“This is the first time a court has ever suppressed anything from a government hacking operation."
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Cool integration of HTTP 2.0 in Go.
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Go 1.6 features.

h/t christopherhesse on Reddit.
Time flies. Go 1.4 is one year old (happy birthday!) Go 1.5 is already 6 months old! Go 1.6 to be released sometime in February. Go 1.6 Candidate Release 1 was released on January 28th. Notes. The slides are available on talks.golang.org/2016/state-of-go.slide. Most of the code examples won't ...
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Note for later watch.
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I am engineer, PMP, CISSP and CISA certified professional with more than 10 years of experience with Business Processes, Risk and Information Security Management in a wide range of industries.

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People, business management, information security, GRC and technologies in general.
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Google+ Growth
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Aquela mentirinha... #6
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Obs:clique na tirinha para ler melhor

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Ambiente simples, pequeno mas muito agradável. O serviço é muito atencioso e a comida é excelente.
Food: ExcellentDecor: GoodService: Excellent
Public - a year ago
reviewed a year ago
Tive o prazer de passar o final de semana na Pousada Vila Alice. É uma pousada pequena, aconchegante, intimista e personalista. O café da manhã é especial sendo ao mesmo tempo simples, caseiro e delicioso. O atendimento do proprietário Oswaldo e da equipe é ao mesmo tempo discreto e extremamente cordial e amistoso. Tentando resumir em poucas palavras, é como se fosse uma Pousada Artesanal sem a pirotecnias dos Resorts e dos Hotéis comuns.
Public - 2 years ago
reviewed 2 years ago
5 reviews
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A comida é excelente com destaque para a picanha na travessa de barro, além de deliciosa tem um ótimo custo benefício. Em todas as vezes que fui, a cerveja estava gelada e o atendimento foi muito cortês. Destaque especial para a simpatia do proprietário Tino.
Public - 2 years ago
reviewed 2 years ago
A cerveja é sempre gelada o o bife a parmegiana é excelente
Public - 5 years ago
reviewed 5 years ago