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joaomacp

405 karma · joined July 24, 2016

http://joaomacp.github.io/ 95joaopereira at gmail dot com
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joaomacp··on HSBC moves from 65 relational databases into one global MongoDB database
I thought the parent was talking about shorting MongoDB ("MDB" NASDAQ ticker)
joaomacp··on Hong Kong security chief warns of growing terrorism backing planned security law
He knows China is powerful enough to do this without meaningful consequences. Taiwan not yet, but soon.
joaomacp··on London may have gone into a Covid-accelerated decline
both
joaomacp··on 40-60% of the unexposed produce Covid-19 antibodies due to earlier cold exposure [pdf]
Does this explain asymptomatic cases? Maybe people don't develop symptoms because they have cold-related antibodies that don't let COVID develop. Can these people still shed and transmit SARS-CoV-2?
joaomacp··on It's Time to Act – A Response to Marc Andreessen
The most common meaning of "racism" in conversation is "acting based on the race of some person / group of people".

Immigration policies can (should) be discussed without taking into account people's race, and still lead to racially-biased outcomes, simply because the majority of immigration-seekers have a race that's different from the majority of people in the target country.

joaomacp··on Mast fire probe amid 5G coronavirus claims
This pandemic is certainly providing lots of opportunity for behavioral and social studies.
joaomacp··on Alphabet in bid to buy Hacker News
Embrace, extend, extingui$h
joaomacp··on 8 strains of the coronavirus are circling the globe
Can someone help inform me better: I heard there are no significant mutations yet, but I also heard there are 2 "strains": S-cov and L-cov, where S-cov is a more recent and less dangerous variation.

Is this right?

joaomacp··on Huawei is dividing Western nations
You are overgeneralizing: the US did this in a crisis. China has been doing this frequently. It's not valid to equate them.
joaomacp··on Ask HN: Computer Science/History Books?
+1 on "The Soul of a New Machine": it's one of the most mentioned computer history books, and inspired the great "Halt and Catch Fire" TV series.
joaomacp··on Beware second waves of Covid-19 if lockdowns eased early: study
It's going to be a return to rampant crime, drug addiction, poverty, etc.

There will be significantly more deaths from the cure.

joaomacp··on Beware second waves of Covid-19 if lockdowns eased early: study
If only you were in China and could report on him for bad behavior...
joaomacp··on Masks really work to reduce the spread of Covid-19
People's decisions today are so influenced by media that fake news become acceptable (like white lies).

Media has to act as the Catholic Church did in ancient times. It has to make up some stories to control people's behavior.

Toilet paper is an example of this: you talk about a shortage, and people will buy more. They don't believe it's really necessary, but since they know other people are buying and the media is talking about it, even smart people understand demand will increase and stocks will fall, so they buy more.

Same with masks: if you tell people "they work, but don't buy them" it will have the exact opposite effect.

In China and other Eastern countries, this is dealt with by causing fear in people: "if I buy a lot of masks and the state finds out, I'll be in trouble".

We don't have that tool in free Western countries. So media manipulation becomes the only effective tool for behavior control.

joaomacp··on Global Catastrophic Risk
This coronavirus event will certainly inspire evil middle-eastern terrorist groups to begin researching on bio-weapons. When they discover how easy it is to synthesize base pairs, we are utterly fucked.
joaomacp··on [dead]
It would be nice to hear from a virology / genome editing expert on his/her thoughts about the possibility of SARS-CoV-2 being engineered. There are lots of theories, but I'd love to hear the mechanics of how it could happen.
joaomacp··on Merkel bans meetings of more than two people to slow coronavirus
To trace contacts of the deceased person. For an elder person, it's likely he/she has interacted with other elders, and it's good to check.

Compared with testing a healthy young person who is asymptomatic, it's better to test the dead one.

Edit: but healthy people with some suspect symptoms should of course remain isolated.

joaomacp··on Ask HN: What projects are you working on now?
Sounds interesting!
joaomacp··on Loss of sense of smell a marker for Covid-19 infection
Is this loss of scent permanent or temporary?
joaomacp··on [dead]
This "prep work" is selfish and irresponsible.

Supermarkets / grocery stores are not closing. There are no floods or storms or nuclear bombs falling, preventing people to go to supermarkets.

If many paranoid people start "prepping", they empty out essential stuff from the shelves. Then an older, poorer person, who is out of TP / canned food / etc. goes to the store and finds nothing there. That's honestly saddening.

This is a matter of altruism. Western countries, especially America, is thinking selfishly. I like capitalism, but this is a bad aspect of it.

joaomacp··on U.S. will suspend all travel from Europe for 30 days
The UK exception seems weird. Is Trump really playing geopolitical / diplomacy games in this situation?
joaomacp··on Italy is extending its coronavirus quarantine measures to the entire country
This sounds authoritarian as fuck, you have to sign a document to say why you're outside.

Some countries are following the chinese example of "authoritarian democracy", particularly European countries with big commercial ties to China.

Then you have the reverse side of things: USA, where not even tests are being done in obviously suspect cases. But people can still go to work, buy things, live their life.

There's pros and cons to both approaches, but compared to how H1N1 was handled I definitely see a turn to authoritarianism, at least in Italy.

joaomacp··on Gears
I love this video. It's such a great visualization, simple and clear, and gets the point across while being entertaining.

And it's from 1937! We have so many video editing and effects tools today, but sometimes simpler is best.

joaomacp··on Physician burnout widespread, especially among those midcareer, report says
Is there data on this?
joaomacp··on Incels: America’s Newest Domestic Terrorism Threat
This article treats the 'incel' phenomenon as a security threat, just like ISIS and Al Qaeda, instead of looking at it as a social problem and trying to solve it.

Doing this is the same as declaring 'war on drugs' instead of treating it as a medical condition, and trying to fix addiction problems by medical campaigns.

I think the USA do this because they have a weak state, that can't really steer people's social and mental health. I think the ideal approach would be to look at how we can improve society, in order for 'incels' to stop existing.

Technology plays a big part as culprit. Speaking from my experience, watching YouTube / Instagram / etc. fools my brain into thinking I have a social life, and makes real social interactions feel harder, as they're messier. It makes me socially anxious, because I almost never need to practice real-life interactions.

I think the above happens to many young men today, and we should look at it as a society and find / promote solutions.

joaomacp··on Impossible Pork
I don't care that much about animals, as far as their pain or feelings.

If we slaughter ants and fruit flies while not caring for their rights, what is that different from a cow or dog?

I know this is an unpopular position, but I don't see the logic in animal rights.

Now, when we're talking about maintaining ecosystems, I'm all for it. What's happening to bees is bad for humans.

But creating cattle just to slaughter and eat it, that's just part of our nature. Like a lion slaughters a gazelle. We just evolved to have the tools to breed them...

Maybe cattle breeding is inefficient and pollutes the planet. That's also bad,but it's the best way we've found yet to feed billions of people and keep affordable food prices.

joaomacp··on Show HN: Terrastruct – A Diagramming Tool for Systems
I use a similar tool: sequencediagram.org

Seems to have very similar features, and can export to svg for free (in websequencediagrams.com it's a premium feature)

joaomacp··on Ask HN: A New Decade. Any Predictions? (2010)
by DrJokepu: > Surprisingly enough, Apple will still stay relevant even though Steve Jobs will have to leave his position due to health problems or something else.

Sad, but accurate.

joaomacp··on Fashion industry emits more carbon than flights and maritime shipping combined
Use some as cleaning cloths.
joaomacp··on Airbus hit by series of cyber attacks on suppliers
Out of curiosity: why is China not mentioned in the article's title, when the first sentence states a "Chinese state-sponsored hacking operation"?
joaomacp··on Ships fitted with ‘cheat devices’ to divert poisonous pollution into sea
Article from 2015: https://www.wired.com/2015/05/future-wind-turbines-no-blades

I guess they're still not feasible for some reason.

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