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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 YouTube is trying to reward “quality” content
The purpose of ads is not just eyeballs. It's to get people to buy a product. If a lot of kids that watch YouTube all day see a Nike ad, it doesn't mean they'll buy sneakers.

There are more and more people that do nothing but be on the internet all day. Advertisers don't want those people, they want social people that watch YouTube on the side, and are likely to buy products too.

joaomacp··on Fuchsia OS Introduction
As much as I dislike the Chinese state, I must say that I also want to learn Mandarin for this reason. I learned English for cultural reasons that are also related to the imperialism of the USA, so why not Mandarin?

Can anyone advise me on an efficient way to do this?

joaomacp··on Martin Shkreli steers his company from prison with contraband cellphone
Honestly, with Shkreli's level of ambition and intellect, I doubt he'll ever be broke or unsuccessful.

I'm not a fanboy or anything, but a big percentage of rich people have done some illegalities. They still end up on top. It's really survival of the fittest.

The humble people that want work life balance and doing the right thing are way less rewarded with money and luxury. You can be on the humble side, but don't wish misery on the witty capitalists. It will never happen.

joaomacp··on Show HN: Two Kilo – A curses-based text editor in 2kb of code
In my day we had to invent tools first, but before we could do that we had to evolve from unicellular microbes.
joaomacp··on SingleSpot: meet singles in bars and cafés around you
Since you mention Grindr, I remember in my company there were guys who would sign up as gay, just to see who in the company (and I guess in their social circle) was secretly gay, and tell it to other people. The irony is that they would find other guys doing the same.
joaomacp··on Huawei Facts: An open letter to the US media
Another reason is they could make Reddit 'sink' comments criticizing the Chinese.

China is playing a really good geopolitical strategy game. If any other country was doing the same attrocities as them, they would be criticized and sanctioned. But China has gained enough power to stop that from happening.

joaomacp··on How Jeff Bezos Went to Hollywood and Lost Control
This is just gossip, not news, and not that scandalous.

The only nice thing is the hilarious story that Lauren Sanchez's husband, which she was supposedly cheating on with Bezos, after hearing the story was found going out with a model called Keir Alexa, possibly to get back at Bezos because of the name 'Alexa'.

joaomacp··on Cheap renewables won’t stop global warming (2018)
I live in Portugal. If this summer is as hot as the last one with several 40c+ days I will move out for sure. I just can't take it, and like most people I don't have ac. I could get ac, but if I have the option I'll escape to Scandinavia or Germany
joaomacp··on Zebras’ stripes discourage biting flies from landing
"Why do humans have teeth? To chew food"

Doesn't look bad to me, and it's the same exact point.

joaomacp··on I Hit $115k/Month with a Status Quo Improvement
Oh god...
joaomacp··on I ruin developers’ lives with my code reviews and I'm sorry
> "If a guy brings me his code, and it has mistakes, it brings insane pleasure from how smart I feel"

This quote made me laugh from the exaggerated "insane pleasure" in other's mistakes. But I feel this way sometimes. I'm completely sure it comes from my own insecurities, so that when I see another guy missed something I wouldn't, I get a feeling of relief - actually I'm not the worst programmer in the world.

So for me this feeling comes from impostor syndrome - I thought I was bad, I saw another guy who was worse, I felt good. Insecurity is really a self-fulfilling prophecy. I'm trying to work on it by forcing myself to ask questions I think are dumb, and not fearing judgment from others. This in turn will also influence my peers to feel less afraid of their doubts, turning the spiral around.

A study from Google [1] agrees with this: they found that the best predictor of team quality was the willingness to ask questions and express opinions without fear. Quoting Google:

"In a team with high psychological safety, teammates feel safe to take risks around their team members. They feel confident that no one on the team will embarrass or punish anyone else for admitting a mistake, asking a question, or offering a new idea."

[1] https://www.inc.com/justin-bariso/google-spent-years-studyin...

joaomacp··on Reddit Protests and China’s Control of American Culture
This x100. Unfortunately China is pulling too many strings to ever be punished for these behaviors. Let's hope they start getting some backlash from citizens about these practices.

Otherwise it's going to be an interesting power-war between China and the USA, and it's unclear on which side the EU will fall.

joaomacp··on Rethinking Giftedness and Gifted Education (2011) [pdf]
Of course software can play a bigger role, but don't underestimate the importance of contact with human teachers and colleagues of high expertise, as well as feeling valued by other humans instead of making a virtual skill-level go up
joaomacp··on Fyre Festival Was a Huge Scam. Is Netflix’s Fyre Documentary a Scam, Too?
Ah, so that's why I've been seeing lots of videos and posts about Fyre... I thought it was weird, as the incident was so long ago.

I had no idea Netflix had a documentary coming. I guess I was successfully targeted with undercover marketing, making it seem like this was an issue having popular discussion.

joaomacp··on University of the Third Age
My aunt (about 65) recently retired and she kept being active: she goes to yoga classes, hydrogymnastics, classes where they do memory exercises/games, and she helps my cousin with his car-rental business.

This is awesome, but part of it is enabled by her being relatively high class. These kinds of things should be sponsored by the government because they keep people healthy.

I remember reading somewhere that mortality risk increases considerably after retirement, plausibly because people become more sedentary.

PS I'm in Portugal if you're wondering. Here they call it Senior University - a bit better than Third Age if you ask me.

joaomacp··on Wife of Norwegian billionare kidnapped, €9M crypto ransom
These kinds of things need to be considered when arguing about privacy: you could argue that having completely private payments with no link possible to the receiver is bad, because it facilitates this type of crime: Before crypto, you had to either demand money to a bank account (traceable) or demand cash on a certain location (which could then be surveiled by police to find the criminals).

I'm not saying there are kidnappings because there is crypto, but maybe some kidnappings are easier when cryptocurrencies exist, and that is definitely a downside to consider vs the already low upsides of crypto.

joaomacp··on Ask HN: How to found a company as a single founder?
> How do you sell first?

In a podcast [1] a mattress company tells a story about how they got started: they just built a one-page site where you could buy a mattress, but the company didn't actually exist: after a certain point it failed and you couldn't buy it.

They publicized the site and soon enough they found that someone had clicked to buy a mattress: a potential customer.

So they effectively "sold" before building. Since the test was good and they found that people were willing to buy mattresses with the features they offered, they then built the company (and are now successful).

[1] https://www.indiehackers.com/podcast/061-jt-marino-of-tuft-&...

joaomacp··on Coding on an iPad Pro in 2019
A counter-example: in Portugal, Lenovo's support representative took my yoga 500 and replaced the motherboard for no cost. Don't remember the duration, maybe 1 or 2 weeks
joaomacp··on New Horizons’ first hi-res imagery of Ultima Thule
I think everyone with an interest in spaceflight should play Kerbal Space Program. It gives you a sense of scale, both of space and time (luckily you can fast-forward to 100.000x), and also teaches you the basics of making orbital trajectories and correcting them, landing on planets/moons with different gravity... I'm really glad to have played it!
joaomacp··on Surprise DNA Results Are Turning Customer-Service Reps into Therapists
At the end of the day, what difference does it make? You can't change the past. Also I'm pretty sure knowledge like "he's not my real father" will stay in the back of your mind and pop up from time to time, making things awkward for a long time.
joaomacp··on Best Paper Awards in Computer Science since 1996
SNIP sounds cool, and makes sense as well: Systems for Neural Information Processing
joaomacp··on Iron Is the New Cholesterol?
Wait, I had anemia all my life and I thought this was bad. Does this mean I'm actually healthy now?
joaomacp··on Show HN: Fancy fonts you can use almost anywhere
𝗧𝗵𝗶𝘀 𝗱𝗲𝗳𝗶𝗻𝗶𝘁𝗲𝗹𝘆 𝗹𝗼𝗼𝗸𝘀 𝗮𝗯𝘂𝘀𝗶𝘃𝗲... 𝘆𝗼𝘂 𝗰𝗮𝗻 𝗲.𝗴. 𝗽𝘂𝘁 𝗺𝗼𝗿𝗲 𝗲𝗺𝗽𝗵𝗮𝘀𝗶𝘀 𝗼𝗻 𝘆𝗼𝘂𝗿 𝗰𝗼𝗺𝗺𝗲𝗻𝘁 𝘃𝘀 𝗼𝘁𝗵𝗲𝗿𝘀 𝗯𝘆 𝘄𝗿𝗶𝘁𝗶𝗻𝗴 𝗶𝘁 𝘄𝗶𝘁𝗵 𝗮 𝗯𝗼𝗹𝗱𝗲𝗿 𝗳𝗼𝗻𝘁.
joaomacp··on How Peter Jackson Made WWI Footage Seem Astonishingly New
Probably the best solution would be a combination of the two: the ML algorithm would also learn from human examples and corrections.

I think this will be the solution in a lot of problems and industries: ML does the boring and repetitive work, and a human sanity-checks it and fixes the edge cases where ML is 'dumb'

joaomacp··on Second Canadian 'missing' in China
This battle between the US and China for influence and control over the world will be interesting. We all know the US are far from harmless in their foreign policy. But still, between a US-centered world (which is still where we are in the western world, maybe not economically, but culturally for sure) and a China-centered one, I would choose the former by far.

This is still very much fiction, but there are many possibilities in the open. With the US questioning the support of EU to NATO, and the EU wanting the European Army, who knows where things will go (EU-China allying vs the US being the fictional world war III scenario).

joaomacp··on The 50th Anniversary of Doug Engelbart's Great Demo
That launch is already considered an innovative turning point.

What he shows is basically what exists now in phone tech (apps, good internet, GPS...), and it's the same only-screen device (today's are equal, only larger). And it's now owned by more than 2 billion people.

I know Jobs was seen (probably correctly) as a jerk. But this was such a huge achievement that I can't help admiring it.

joaomacp··on Ask HN: What are your “brain hacks” that help you manage everyday situations?
I do this. Some colleagues don't leave work until they've finished the feature/bug they're working on.

If it's 6pm and I'm stuck solving a bug, I call it quits and go home. Often the next day I have a new perspective and check that other place where the bug actually comes from, and solve it faster than if I had just banged my head until late.

joaomacp··on FOSS is free as in toilet
Yes. And then if it breaks and users want a replacement, they'll move to a fork
joaomacp··on Non cogito, ergo sum
I don't know where you're from, but in the driving school I went to in Portugal most people failed their first exams. They asked for a lot of parking manouvres and were harsh on every error. The purpose was to force you into buying more lessons, which you had to do if you wanted a second examination. My second test was way easier, and everyone I knew there failed the first one.
joaomacp··on What if the Placebo Effect Isn’t a Trick?
I am amazed by this.

I've also read if a parent gives some home treatment (e.g. a warm cup of milk) to a kid and caringly says that it'll cure his cold, the immunity of the kid actually increases, effectively curing the cold with love.

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