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float4

1,219 karma · joined June 9, 2020

Love all, trust a few, do wrong to none.
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float4··on In older adults alcohol abstinence is associated with increased dementia risk
> The problem was that "no drinking" group included people that weren't drinking because of poor health

They've corrected for this. From the abstract:

> Adjusting for additional demographic and clinical covariates, and accounting for competing risk of death, did not substantially affect results.

float4··on [dead]
Email is insecure by design. End of story.

Even if you use a secure email service (whatever that means), the other party you're emailing with rarely does, so the NSA/CIA/MI6/whatever still has access to your 99.9% of your email traffic. If you don't want this, then don't email.

I truly don't get why we're having these discussions here on HN.

float4··on Apple Delays Rollout of Child Safety Features
Yeah, this has been done many times before by other tech companies. Facebook being the prime example.
float4··on The $150M Machine Keeping Moore’s Law Alive
Hehe my dad bought 500 ASML shares in '08 at roughly €15.

And then he sold for €45 three years later.

float4··on Forget privacy: you're terrible at targeting anyway (2019)
Very inspiring stuff!

Given that "simple heuristics and topics are plenty to target ads", is it correct to assume that your payout/cost is similar for publishers/advertisers compared to networks that target users?

float4··on Music streaming payouts comparison
Doesn't work that way. The money you pay that is reserved for artists is thrown onto a big pile, and then the money is distributed to the artists proportionally to how many plays they generated.
float4··on The real OnlyFans scandal is the unaccountable power of platforms and banks
> for these corporations this is not a matter of free expression, as it ought to be, but one of morality

Is it really true that banks block transactions related to sex work because they are morally against it? Last time I checked banks just want to make money. This is a genuine question by the way.

> But just a few weeks in, Twitch shut it down after a change of policy that included, among other things, a ban on visible nipples for those who “present as women”. At a time when societal views around gender and sexuality are in many ways opening up, restrictions on sexual expression [...] feel positively archaic and seem to demonstrate that [...] there remain highly unaccountable powers making decisions about how we express something so utterly natural and human.

Although I fully support the free the nipple movement, I can absolutely understand that a streaming platform wants to ban nudity / sexual content. Sure, sex is natural and normal, but compared to other human behaviour it is still in a league of its own.

float4··on Almost all of the top subreddits are moderated by the same people
/r/thenetherlands is a joke. So many comments are being removed in order to "maintain community standards".

I once posted a genuine question there: "Do you think /r/thenetherlands is an echo chamber?"

"[Your post was removed for being off topic]"

Oh well. Now I just don't use reddit anymore. My life is better because of it.

float4··on Tell HN: Dont upload these images to iCloud as Apple will assume its Child Porn
Just uploaded them all to my iCloud.

They way I see it, this is the best photo backup approach one can possibly take. Just get flagged for child porn, and have all your iPhone photos stored indefinitely on FBI servers.

Does the FBI have geo-redundancy?

float4··on Once an Addict, Always an Addict?
Yeah, I purposefully used the word "simple" when I meant straightforward and "hard" when I meant difficult, but I should've explained why I used those words. Either that, or I myself have gotten the meanings of the words mixed up.
float4··on Once an Addict, Always an Addict?
Someone on HN once made the comparison between obesity and the old attitude people had towards depression. When you were depressed, you "just" had to go out and do things. You "just" had to drive out the negative thoughts with positive ones. etc.

When you're overweight, you "just" have to get into a caloric deficit. "Just" undereat 7700kcal and you've lost 1kg of bodyweight. It's that simple.

Except it's actually hard.

float4··on Once an Addict, Always an Addict?
> Your brain can start functioning normally again in a span of a few months. It doesn’t have to be the same, but it should work just fine.

The two articles linked to at the bottom talk about multiple years, the third link points to a news article that refers to some research that uses one year as a minimum.

This feels more believable than "a few months". My flat mate has ADD and has phases during which he's clearly addicted to alcohol. At one point he stopped drinking completely for over 6 months, but drank a small amount once and things spiralled out of control again.

He does view addiction as a personality trait (in part because he knows that people with ADD develop addictions more often), and that attitue actually seems to help him. These days he abstains from addictive things because he "knows" that he'll get addicted to them once he starts.

I believe in the thesis of this blogpost (that addiction is in fact an emotion regulation problem, and that it can therefore be cured), but the approach my flat mate takes these days works pretty well, at least for the first year.

float4··on The House That Vanished
A decent next step would be to send more than one police officer, but it probably isn't really worth it.
float4··on I was sick, tired and had lost myself until I began lifting weights at 71
First line of the article:

> shattering preconceptions about what’s possible in your eighth decade

So if she's using something, this is not giving other people a fair idea of what's possible.

float4··on There’s Toxicity, and There’s Toxicity (2017)
How much money does something like that cost? Sounds expensive.
float4··on Deurbanising the Web [pdf]
That's not the PDF spec is it? That is a spec for Adobe Acrobat, which is not allowed to make any web requests thanks to my application firewall (Little Snitch).

Pretty sure a PDF opened in the browser can't run any JS, but not completely sure. So you're right: I don't really know it for a fact. Poor choice of words.

float4··on Deurbanising the Web [pdf]
DDG mostly, and they don't track users.
float4··on Deurbanising the Web [pdf]
When I click a link you mean? Definitely true, but that way they only have access to my IP and user agent, which is still better than all the WebGL, Font library, display calibration settings, mouse movement etc. that they use otherwise.

I often use Tor, although I'm pretty sure that even then, a good analytics lib can see it's me based on scroll behaviour, mouse movement, time of day, and of course what I browse.

But yeah, you make a good point.

float4··on Deurbanising the Web [pdf]
The only thing I like about PDF compared to HTML is that with PDF, I know for a fact that no web requests are made in the background. That means no fingerprinting, no analytics etc.

With HTML, I have to trust that some random entity does what they state in their privacy policy, and they regularly don't. Sure, I can disable JS, but then 95% of the web doesn't work anymore.

Other than that PDF is quite clearly a less accessible format.

float4··on Fasting lowers blood pressure by reshaping the gut microbiota
I wasn't making "my point". I just knew your comment about 30-40 days and the random mentioning of concentration camp victims was absurd, and it clearly is according to official clinical guidelines. So no, I won't "just check online".
float4··on Fasting lowers blood pressure by reshaping the gut microbiota
You can definitely get refeeding syndrome after 7-10 days of fasting. It depends on your your fat reserves, health, and lifestyle.

Say I'm 192cm and 69kg. My BMI is 18.7, which is definitely low, but perfectly healthy. I have an active lifestyle and burn 3500kcal per day. If I fast for 7 days without changing lifestyle, I lose roughly 7*3500/7700=3.2kg of bodyweight. By that point my BMI is 17.9. According to this paper[0] with 632 citations, anyone with a BMI <18.5 who's not eaten for more than 5 days is at high risk of refeeding syndrome.

If you think the numbers are fictional: those are my numbers from ~5 years ago.

[0] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2440847/

float4··on Is This Prime?
And then one day, somebody asks you calmly: "what about 2^31-1"? Better memorise the small Mersenne exponents as well!

https://oeis.org/A000043

float4··on A Stoic Philosopher in a Hanoi Prison
One thing I find interesting about this time, and maybe HN specifically, is how the people focus on wealth and success (as a substitute for community and religion I think), and at the same time invest time in things like stoicism.

Part of stoicism is the practice of thinking about (your impending) death, often called memento mori[0], which directly contrasts any focus on ephemeral things such as wealth.

It's not surprising that this very contrast became a rather popular type of painting, called the Vanitas[1]. Two of my personal favorites:

1. https://en.wikipedia.org/wiki/Memento_mori#/media/File:Still...

2. https://en.wikipedia.org/wiki/Vanitas#/media/File:1628_Claes...

Memento mori / Vanitas also escalated a bit in the 15th century, when we arrived at the Danse Macabre[2] (these days probably mainly known for that one famous Saint-Saëns composition). My favourite Danse Macabre painting was destroyed in a bombing, but there's still a high resolution photograph of it: https://upload.wikimedia.org/wikipedia/commons/e/e1/Totentan...

[0] https://en.wikipedia.org/wiki/Memento_mori [1] https://en.wikipedia.org/wiki/Vanitas [2] https://en.wikipedia.org/wiki/Danse_Macabre

float4··on How to win a hackathon without coming in first place
About 5 years ago, I attended a hackathon, as I did every so often.

My team was comprised of CS undergrads and we made something that was technically interesting but not at all marketable. This was fine with us, as we were there to have fun. To us, that was "winning".

However, another team was clearly there to win. Their "leader" was a CS grad student, and they were developing an iOS app that would show you a random weighted complete graph. The task for the human was to build a hamiltonian cycle with minimum edge weight sum, i.e. they had to solve a TSP. Their app only showed very small graphs (<= 5 nodes IIRC) with significant edge weight disparities, such that it was usually trivial to find the correct solution. During their presentation they went on to say that they were using the solved puzzles as input for an AI that could then be used to solve larger TSPs. This was very interesting and valuable they said, as the TSP is relevant for delivery companies, logistics etc.

That grad student must have known that it was pure nonsense, but they actually won. There were people from pretty reputable tech companies in the jury, yet they won.

My teammates and I weren't mad though; to us, and some CS students from other teams who clearly knew what was going on, it was pretty funny.

float4··on New ‘mirror’ fabric can cool wearers by nearly 5°C
Same. Very healthy weight, very active lifestyle. In the summer my junk often gets so warm that I actually feel like it isn't good for my fertility.
float4··on Why the African genome project is so useful
Accidentally removed my comment when I wanted to reply, but whatever.

I never said that we can infer everything from European data. I never said collecting African genetic data is pointless. I know that Europeans do not vary nearly as much from a genetic standpoint as Africans (although they're definitely not clones). I know you can't generalise using European/Asian data. I know larger samples describe the population better.

All I said is that it's easier to analyse data that is less variable, and that Europeans aren't clones. Both points are true. Finding patterns is more difficult when there is more variance in the data. That doesn't mean it's pointless, it's actually more useful, but it's also more difficult.

float4··on Why the African genome project is so useful
And that causes the problem that the parent describes: greater variability makes it harder to find useful patterns.
float4··on CDC Reports 51% Increase in Suicide Attempts Among Teenage Girls
Thanks for commenting; interesting sources.
float4··on CDC Reports 51% Increase in Suicide Attempts Among Teenage Girls
Suicide attempts have always been way more frequent among women/girls, whereas men/boys actually commit suicide more often.

https://en.wikipedia.org/wiki/Gender_differences_in_suicide

float4··on User Inyerface – A worst-practice UI experiment
I wasn't getting through because my domain was "domain". When I changed it to "gmail" it was fine.
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