HNHacker News
TopNewBestAskShowJobs

float4

1,219 karma · joined June 9, 2020

Love all, trust a few, do wrong to none.
submissionscomments
float4··on Tipi – A personal homeserver for everyone
> If I were super paranoid, I'd expose them to separate VLANs, and then use my FW to control network traffic

This is exactly what I did initially, but it was indeed a bit of a pain to manage. Eventually I went with something in between, by first compartmentalizing services and then putting them in separate VMs with separate VLANs:

0. Router / FW.

1. WireGuard / reverse proxy.

2. Personal, e.g. file storage, backups.

3. Hosting. My personal site is reverse proxied through Cloudflare and only their IP ranges are whitelisted.

4. Compute, i.e. stuff I want to compile / develop / run on my server. Handy if I want to run a heavy simulation overnight or need more disk space / RAM / CPU power than my M1 MB Air has available.

5. Services. This runs many small tools / services that don't need access to my RAID pool or anything like that. If this gets infected I wouldn't really care.

6. VPN. This VM can only access the internet through a VPN. Doesn't have anything installed ATM, but has been used in the past for urlwatch and torrenting.

7. Test. This is where I try out new software before actually installing it on the correct VM. Once I've concluded testing I rollback this VM to a clean install.

It takes a weekend to install Proxmox and set up the VMs / VLANs, but after that it easy to use.

float4··on I tricked myself into working out 3 times per week
> I’ve seen a few studies supporting this in general: people ride with the same intensity but go further or get there faster.

I highly doubt this. I believe it's true for you, but in the Netherlands I always notice how e-bikers generally ride the maximum legal speed (25km/h) but at a preposterously low cadence and while sitting perfectly upright. Non e-bikers on the other hand go slower, have a higher cadence and (if there's a significant head wind) move their torso left and right in accordance with the pedal strokes. No way those intensities match.

I do believe that the area under curve can be similar, because e-bikers can indeed ride further.

float4··on Automakers Are Starting to Drop Am Radio in New Cars
That's why many countries choose to wait until DAB+ has overtaken FM. In the Netherlands FM will at least exist till 2027 and will only be phased out once 70% of radio traffic goes through DAB+.

Also, some ISP's in the Netherlands have already stopped delivering analog radio over coax and most people I know actually did just... buy new radios / DAB+ receivers.

float4··on The “just worrying” labelling technique [pdf]
> why wouldn’t it be some huge thing you hear about everywhere?

I feel like you hear about this all the time though. Both in the context of mindfulness, and in the context of cognitive behavioral therapy.

Also, as far as I know the actual effectiveness of CBT and mindfulness is still up for debate? It certainly works very well for some people, but "this actually works" might be a bit much?

float4··on Reasons to tour by bicycle
Here's a dude climbing Ventoux on a single speed Dutch bike (subtitles available): https://www.youtube.com/watch?v=jvDp5uCD0Kk

He also did it on a kids bike the year before: https://www.youtube.com/watch?v=49V4P_wkKTU

I should mention he currently rides for a UCI ProTeam, which is one tier away from the highest level in the world.

float4··on Show HN: A Reddit style site to discuss podcast episodes
First podcast on the right: Ben Shapiro. So I scroll down to check out the second podcast: Jordan Peterson.

Not really in the mood to join such a community.

float4··on Ask HN: Why do negative crypto articles dominate on HN?
https://xkcd.com/538
float4··on Ask HN: Have you had any real benefits from apps like Headspace, Fabulous, etc?
I think they're mainly referring to the "what am I doing here?" phase that most people seem to go through when they start meditating.

It's exactly why I never managed to make a habit out of it.

float4··on Hackers Leak Lichess Source Code
> I've been using Lichess as a password generator, seeding it with my opening moves.

1.e4 e5 2.Ke2?

float4··on Ask HN: What is your “I don't care if this succeeds” project?
I've wanted something like this for a long time! Awesome!
float4··on Tell HN: Stack Exchange (Stack Overflow) is now blocking Tor
The core of your argument is that you don't think many reloads, by different users, from different Tor IP's, is convincing evidence, and I think that makes you part of a very tiny minority.
float4··on Tell HN: Stack Exchange (Stack Overflow) is now blocking Tor
I disagree. I just opened Tor myself to check, and indeed every circuit (I've refreshed ~10 times using cmd+shift+L) results in an error page that literally states: "Reason: Blocked."
float4··on Rotterdam bridge to be dismantled for Oceanco's 127m sailing yacht Y721
I'm Dutch.

The way I see it, a 500 million dollar yacht is being built in my country, and in return we have to dismantle a bridge, that isn't even in use, for a single day and we don't have to pay for it.

Although I find the super yacht industry rather disgusting, in this particular instance it sounds like a pretty good deal for Rotterdam honestly.

float4··on Hiring for conscientiousness (2019)
> I realized that most of them had a unique “theory of hiring”—some “secret ingredient”

I watched an interview with Jordan Peterson (yeah, I know...) a few years back, and he stated that the two big predictors for success in the workplace are intelligence and conscientiousness, so at the very least this isn't a secret ingredient.

float4··on On Leaving Facebook
Are questions of the hard type really that common? Thought it was mainly medium.
float4··on Discovering a security vulnerability in a major grocery delivery platform
Personally I don't care about these data breaches anymore. My:

- full name, date of birth and email have been leaked by multiple websites;

- phone number was leaked by Facebook (added it for 2FA many years ago);

- address information can be found in the public database of the Chamber of Commerce.

That doesn't make negligence okay, but at least Gorillas and Flink both gave me a €15 discount on my groceries in return.

float4··on Russia says Ukraine talks hit 'dead end', Poland warns of risk of war
Thanks for sharing the video. I think the downvotes you got are unfair, as you're just linking to a talk from a, from the looks of it, very distinguished professor, so I upvoted you.

However, I would like to inform you that there's a good article that was written in response to Mearsheimer's talk: https://archive.is/6vdRf

float4··on Adhole.org is shutting down
Oh come on, you can't be that cynical?

The creator started the project 5 years ago because people around him without technical ability wanted a DNS ad blocker, but didn't know how to setup pi-hole. His peak MRR through Patreon was 13$, and he received one or two separate donations of ~10$ every month as well. The servers alone cost him more money than he received.

Dutch source: https://tweakers.net/nieuws/191950/openbare-pi-hole-adhole-v...

float4··on The next big Wi-Fi standard is for sensing, not communication (2021)
Smart cards store secret keys and modifiable internal state on-device. Older smart cards, with for example a MIFARE chip from around the year 2000, can be cloned relatively easily because they have many vulnerabilities, but newer cards with for example an NXP SmartMX2 P60 are, to date, impossible to clone unless you have access to the card for a large amount of time.

You'd also be surprised how powerful smart cards are these days. the aforementioned NXP chip has 586 KB ROM, 144 KB EEPROM and 11 KB RAM, crypto coprocessors for RSA/ECC/DES/AES, and a 32-bit CPU.

float4··on Big data may not know your name, but it knows everything else
Two things I'd like to say here

1. All anonymisation algorithms (k-anonymity, l-divergence, t-closeness, e-differential privacy, (e,d)-differential privacy, etc.) have, as you can see, at least one parameter that states to what degree the data has been anonymised. This parameter should not be kept secret, as it tells entities that are part of a dataset how well, and in what way, their privacy is being preserved. Take something like k-anonymity: the k tells you that every equivalence class in the dataset has a size >= k, i.e. for every entity in the dataset, there are at least k-1 other identical entities in the dataset. There are a lot of things wrong with k-anonymity, but at least it's transparent. Tech companies however just state in their Privacy Policies that "[they] care a lot about your privacy and will therefore anonymise your data", without specifying how they do that.

2. Sharing anonymised data with other organisations (this is called Privacy Preserving Data Publishing, or PPDP) is virtually always a bad idea if you care about privacy, because there is something called the privacy-utility tradeoff: you either have data with sufficient utility, or you have data with sufficient privacy preservation, but you can't have both. You either publish/share useless data, or you publish/share data that does not preserve privacy well. You can decide for yourself whether companies care more about privacy or utility.

Luckily, there's an alternative to PPDP: Privacy Preserving Data Mining (PPDM). With PPDM, data analysts can submit statistical queries (queries that only return aggregate information) to the owner of the original, non-anonymised dataset. The owner will run the queries, and return the result to the data analyst. Obviously, one can still infer the full dataset as long as they submit a sufficient number of specific queries (this is called a Reconstruction Attack). That's why a privacy mechanism is introduced, e.g. epsilon-differential privacy. With e-differential privacy, you essentially guarantee that no query result depends significantly on one specific entity. This makes reconstruction attacks impossible.

The problem with PPDM is that you can't sell your high-utility "anonymised" datasets, which sucks if you're a big boi data broker.

float4··on Against 3x Speed
> some of the replies and likes to your reply are kinda hilarious

> You [...] misunderstood the point

> Few people corrected you

> Kinda hilarious

If you genuinely want people to understand why they're wrong, then know that this is not the way to do it.

float4··on Italy fines Amazon record $1.3B for abuse of market dominance
VW's diesel scandal and Airbus's bribery fines aren't antitrust cases though. Foreign antitrust cases in particular are often criticised by nationalists.
float4··on Lack of sunlight makes our cells store more fat (2018)
Can we add 2018 to the title?

The Nature article is from Nov 2017

https://www.nature.com/articles/s41598-017-16689-4

float4··on Ask HN: How are you taking care of you eyes?
> 3 sets of 20 6 days a week

Why on earth would you do hypertrophy sets for a body part that clearly benefits more from pure max strength training? Lower those numbers to 5 sets of 3-5 reps at max intensity, and recover for at least 48 hours. At 6 days a week, you're pretty much begging for an injury.

> You can also mix in some beta carotene

Holy cow you're crazy. Stay natty my friends.

float4··on I read a book that blew my mind a little
René Girard is the man who worked out the theory of mimetism a couple decades ago, but he's not even mentioned here. If you want a proper explanation of mimetic theory, you should read some of his books.

> Many people are savvy enough to know that they're influenced by the people around them

Girard acknowledges that many people before him, e.g. Shakespeare, Dostoevsky, the Evangelists, were very aware of mimetic theory. You notice that when you read their works, as their characters behave in a way that is just too consistent with mimetism for it to be a coincidence. Girard was simply the first to explicitly explain the theory and work it out.

Lastly, although I, like so many others, discovered mimetism by myself when I was a teenager, Girards books were still very enlightening to me. He takes a pretty trivial theory, but works it out very thoroughly and draws a lot of insightful conclusions from it.

float4··on Large percentage fear having children because of climate crisis
This probably has to do with experiencing certain news during your formative years. People of my age (I'm ~25 years old) seem to prioritise job security over virtually anything else because in their early formative years the financial crisis took place.[0] I still remember watching the news / discussing the papers every evening with my dad (he's an economist), and it was always about people losing their jobs, homes, savings, pensions. I still vividly remember that pale image of a "For sale" sign that the Dutch news broadcaster regularly used when they talked about the housing market.

I think that the young children of today experience the same thing. We talk about how the earth is heating up. How the permafrost is melting. How the sea level is rising (this one is especially fun in the Netherlands given that most of the country is below sea level). How people, animals, entire species will die. A person who's roughly my age or older is able to understand the severity of the situation, but at the same time is able to understand that there are things we can do, and that we are in fact doing things, which makes me hopeful.

But I can't help but feel a little for the 10 year olds of today who watch the news every evening with their dads.

[0] https://web.archive.org/web/20210303125901/https://www.nrc.n... (It's in Dutch, sorry)

float4··on A Population-Level Decline in Serum Testosterone Levels in American Men (2007)
> Most common brands of Soymilk are junk though, ie. Silk. Westsoy and 365 sell real soymilk without being watered down, sweetened, and fillered

What do you mean by watered down? All soy milks have water listed as the first ingredient.

float4··on [dead]
For an undergrad course on compilers that I took, I had to build a parser, implement a state machine and a few other things. All in Haskell.

For my master's I took a course on static analysis, for which we had to perform usage analysis, type error diagnosis, implement a type checker etc. All in... Haskell.

float4··on Facebook employees badges aren't working, unable to enter buildings
Google searches for "Telegram" are exploding today:

https://trends.google.com/trends/explore?date=now%207-d&q=te...

float4··on Intestinal drug shown to boost memory and cognition
> Blocking 5-HT6 also improves memory (in mice) but it seems to come with circadian disruption.

So the memory improvement is temporary then I reckon? Because my guess would be that circadian disruption -> poor sleep -> poor memory.

Edit: also, any books you can recommend on this topic? I know nothing about it but find it very interesting.

← PreviousPage 3 of 8Next →