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kabouseng

1,510 karma · joined April 2, 2013

Kobus Coetzee

Embedded devices developer. Pretoria, South Africa.

Feel free to contact me at kobus at embeddedfool dot net.

My blog: www.embeddedfool.net

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kabouseng··on Vela Incident
Not so weierd... Develop in secret. Once you have it your enemies knows in any case. And if you can maintain plausible deniability it is much easier to keep developing / much less public scrutiny, especially if you already are operating a highly unpopular apartheid state.

I remember that during the war with Cuba in Angola the South Africans deployed their nuke on the border, the Cubans knew this and as such the South African border was never threatend.

kabouseng··on Emma Chamberlain dropped out of school and changed the world of online video
That is a very victim mentality statement to make.
kabouseng··on Fighting climate change may be cheaper and more beneficial than we think
Don't eat spinach for iron, spinach is a very poor source of iron...[1] [multiple other sources you can google as well]

And vegetarians struggle quite a bit with getting proper dietary nutrition, not just with iron, but also Vitamin B12, Zinc, Omega-3 fatty acids, Vitamin D, Calcium, Protein and Riboflavin. So it is not quite just "simply" adjust your diet you lazy meat eater.

[1] https://www.compoundchem.com/2018/07/17/spinach/

kabouseng··on VPN owners: 97 VPN products run by 23 companies
I don't believe they'll bother putting you on a list for anarchist cb. So many of the recipes have been modified so that you'll blow yourself up that they'll just let nature run its course... /s
kabouseng··on The technology industry is rife with bottlenecks
That line of thinking didn't stop World War I from happening[1].

[1] - https://www.washingtonpost.com/news/monkey-cage/wp/2014/04/0...

"Political scientists often argue that international economic relationships can decrease the likelihood that states will engage in war. Nations that might otherwise be inclined to fight can be deterred, informed or transformed by economic interdependence.

World War I has been called the “Achilles Heel” of such theories. In the decades before the war, Europe experienced unprecedented growth in international economic interdependence, both through trade and capital flows. Yet war not only broke out, but the scale of its destruction was unprecedented. Economic liberalism went into retreat. How could anyone sustain the notion that trade could prevent war when the most destructive war in history had followed an era of expansive international trade? For decades, scholars and policymakers alike pointed to World War I as providing strong evidence against the liberal case."

kabouseng··on Ask HN: Has your company ever needed a line of credit?
Remind me to never be one of your suppliers. Not paying on time is a absolute shit head thing to do and suppliers will not* love you for it.
kabouseng··on A request to drill for lithium near Death Valley
You should read up on thermodynamic laws...
kabouseng··on What a Midwife Wishes People Knew About Her Job
I don't think train drivers earns high pay because of risk, but rather it takes a long time to properly train train drivers (especially freight trains), there is scarcity of skill, and the potential damages of a train crash warrants paying more for better skilled drivers to minimize the chance. The risk the driver takes on doesn't really get factored in.

Edit spelling.

kabouseng··on I Can’t Answer Standardized Test Questions About My Own Poems (2017)
It's a form of Goodheart's law [1]. If you use the test scores to select for gifted students and the requirement is this high you will only select for highly test prepared students (the set of prepared and gifted or prepared and capable students). You're final student selection will be higher correlated to preparation and less to how naturally gifted a student is. This is not necessarily a bad thing though.

[1] - https://en.wikipedia.org/wiki/Goodhart's_law

kabouseng··on Iterative development: the secret to great product launches
“Scrumfall” - Sounds fun /s

>> So I am left extremely cynical about the “ideal sequential development”

Off course, in development/engineering work that has unknowns. But taking TFA example of building houses, most / all developers would do the foundations of all the houses first before moving on i.e. working sequentially.

kabouseng··on Iterative development: the secret to great product launches
It should be stated that iterative development does come with a cost in that it takes longer to execute than the ideal case sequential development. You trade risk reduction for more work.
kabouseng··on An Honest Living
I didn't say they close because of writing software. They close because of living your life.
kabouseng··on China Unveils Plan to Tie Hong Kong, Macau Closer to Mainland
As long as they do it incrementally it should be fine. For the first week only transition motorcycles to drive on the other side, then the week after the cars, then a week later transition the trucks and heavy vehicles to the other side...
kabouseng··on An Honest Living
I don't believe this is specific to software dev. I postulate that this feeling of yours is the route cause of what we call the midlife crisis.

When you are young, you have all the possibilities of what to do with your life. Methaphorically all the open doors of possibility. But as you progress with your life you have to make decisions about what do you want to do, and as you walk through some doors you close most other doors.

For example by choosing to become a software dev, you most certainly wont become a doctor, lawyer, cook, house builder or truck driver, although all these options were open to you a couple of years back, now those doors are mostly closed.

And it is this feeling of lost possibilities that you might be feeling.

kabouseng··on How to Find Hidden Cameras and Spy Gear
You can't really correct for the chromatic distortion (purple effect) as it is not simply a color correction, the IR light bends differently through the optical elements / lense. (The diffraction coefficient is different for different wavelenghts of light). Thus you have to filter the light out to get rid of the effect.
kabouseng··on Ideology Impairs Sound Reasoning
The answer to that question is obviously : "My ideology"
kabouseng··on To protect kids, don’t send report cards home on Fridays
I didn't make a statement as the parent as to the effects of punishment. Making statements requires proof, making extraordinary statements requires exteaordi ary proof.
kabouseng··on To protect kids, don’t send report cards home on Fridays
Citation needed for that statement. Corporal punishment has been a part of human societies for thousands of years, so you need stronger evidence for such a statement.
kabouseng··on Before the Electric Car Takes Over, Someone Needs to Reinvent the Battery
Half of the problem is solved, we only need the engineers to solve the last little part...:

https://www.youtube.com/watch?v=DkGMY63FF3Q

kabouseng··on Building an automatic chicken coop door opener
Reminds me of the story of a farmer asking if an engineer can help him identify sick ostriches on his farm. So to identify a sick ostrich, it doesn't eat anymore, so the engineer develops a tilt sensor that you strap to the ostriche's neck, and if it doesn't tilt enough times a day the ostrich didn't eat and a LED would light up red indicating the ostrich is sick and requires the farmers attention.

Now the problem is to separate the sick ostriches from the healthy ones. So the thinking is you connect the ostrich camp with a narrow passage to another camp, and put out food in the other camp and as the ostriches move to the new camp you capture and divert the sick ones.

Turns out that when you put out food in the new camp, only the healthy ostriches will move to the new camp and the sick ones will stay behind because they are in any case not interested in food.... which negates the need for engineer and his sensor in the first place :D

kabouseng··on Funding Choices – Google’s new tool for GDPR compliance and content monetization
I assume you are extending the analogy by implying that one "warehouse" would be paying users, and the other "warehouse" is free to use / advertising / giving up private data users.

This analogy falls flat, because unlike an alcoholic which can be satiated at some point, FAANG can never be satiated. More information is always good. Thus taking data from both warehouses is better than restricting yourself to only one.

Secondly it also falls flat because your paying users is often the more juicy targets (from an advertising point of view), since they are already well enough off to pay for ad-free internet services, thus also well enough off to target for more lucrative advertising.

Getting back to the analogy, it is like an alcoholic guards two warehouses, one stocked with free budweiser beer, and the other stocked with the finest scotch, and hoping he wont take a swig from the scotch.

kabouseng··on Mini antimatter accelerator could rival the likes of the Large Hadron Collider
"Oceania has always been at war with Eurasia."

Sorry your comment just really made me think about the book 1984.

kabouseng··on No Paper Is That Good
Claude Shannon's paper on information theory [1] is possibly an example of such a paragon of work. No citations, 50 pages of pure awesome, spawned a whole research field of its own and 70 years on just as valid.

[1] A Mathematical Theory of Communication - http://math.harvard.edu/~ctm/home/text/others/shannon/entrop...

kabouseng··on Survivorship bias and startup hype
Not OP but I would assume one of the issues would be building and growing a business while having no monetisation strategy, but chasing growth at all costs nevertheless.

Or monetisation can in no way sustain the current and future costs of the business.

There are many examples, like twitter, whatsapp, homejoy, various food delivery services, springpad... etc etc etc

Sometimes the strategy works though, for example Google and Facebook.

kabouseng··on AI winter is well on its way
That requires super rational agents in the game theory sense...
kabouseng··on Was the Cause of Cambrian Explosion Terrestrial or Cosmic?
Well humans have evolved and are still evolving, there are differences between humans that emerged in the last few thousand years, or what do you call the differences between the human races.

"There are only a few groups who diverged at a set time and remained discrete until now. The KhoiSan split off from the rest of us 100,000 years ago, and the Australian Aborigines about 40,000 years ago. Native Americans, who are a sub-set of the East Asian population, became isolated from population-exchange with Eurasia and Africa 12,000+ years ago." [1]

The thing is humans in the modern age intermingle much more so the differences are subtle and much harder to pick out since they don't remain as discrete.

[1] https://www.quora.com/When-did-the-human-races-diverge

kabouseng··on Is there a fix for impostor syndrome?
The danger with pair programming is you easily get a partner who sees the activity as a competitive exercise / dick measuring activity* , and some engineers find enjoyment in proving to everyone else (including new hires) their superiority.

*excuse my language, but it is the most accurate description I could come up with.

kabouseng··on New System Can See Through Fog Far Better Than Humans
This is interesting but I would like to know how their methodology measures up against SWIR imaging which has the ability to a certain extent to see through fog / mist / smoke [1], and probably provides a better / higher resolution image.

[1] - https://www.youtube.com/watch?v=oR-sPAqDmZ0

kabouseng··on Questioning the motive behind the security allegations against AMD
Sorry if it was implied in my post that their actions has my approval or admiration or any other feeling. The purpose of the post was purely sharing some background information I am aware of.

For the record I view their actions in the case of Capitec and AMD as attempts at blatant (unlawful??) market manipulation.

-edit Oh and there is also a difference between India and South Africa :P

kabouseng··on Questioning the motive behind the security allegations against AMD
There is a bit of a back story from a South African perspective on what is happening here.

Viceroy research group were the ones to break the Steinhoff scandal[1], exposing gross financial misreporting on Steinhoffs financials and resulting in Steinhof's share price dropping from R46 to R6 per share[2].

I suspect Viceroy had short positions on Steinhoff and made quite a bundle. After tasting this legitimate success, they attempted a similar tactic with Capitec bank, a very successful and fast growing South African bank.

They released a research report stating that Capitec has unsustainable and bad debt levels and will soon suffer huge losses due to this bad debt[3]. This opinion was largely unfounded and fears were dissipated with the South African reserve bank making a statement that Capitec's business is sound, but not before capitec suffered a short term drop in their share price.[4]

And so Viceroy have hit upon a very lucrative business strategy, and AMD is next in line...

[1] - https://www.dailymaverick.co.za/opinionista/2017-12-13-the-s...

[2] - https://www.fin24.com/Companies/Retail/steinhoff-drops-to-un...

[3] - https://www.dailymaverick.co.za/article/2018-02-02-viceroy-u...

[4] - https://www.iol.co.za/business-report/companies/capitec-shar...

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