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blablabla123

2,054 karma · joined May 24, 2012

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blablabla123··on PDEs you should know
I think the most generic approach is to prove existence and uniqueness and then go with numerical methods.
blablabla123··on The unreasonable effectiveness of one-on-ones
As an engineer I think I can confirm this. The best work relationships were where it was like that. When it was like that, formally scheduled 1:1s were hardly needed anyway. On the flip-side if you really only talk about the stuff that bothers you - and there's even a push towards that - that's the recipe to make such meetings as unenjoyable and intense as possible. Considering that happens with all team members the effect on the team as a whole cannot be too good. Sometimes also people tend to underestimate the time and effort to successfully solve a certain class of difficult problems. Most people are happy when one major problem gets solved eventually instead of a lot but in a quickfix kind of way.
blablabla123··on Royal Society cautions against censorship of scientific misinformation online
This highly depends on the field. In Physics the barriers are very high. I mean not necessarily for things to end up on arxiv.org but to be published in a peer reviewed magazine. Although probably that's not for every field and perhaps not even feasible because the data is just not there. Thinking about Medicine, every single data point there is probably a lot of work (and speaking of human trials 4 digit expensive).
blablabla123··on Phone is still the best way to order pizza
Maybe I have a distorted view on that but when it was still normal that food delivery usually meant pizza delivery through the phone, it seemed there was much less exploitation going on and everybody was generally happier. Delivery people were then rather people going to school or studying and being happy about that money. Now it seems it's mostly people working full-time delivery and some places are just "dark kitchens". Now it's an innovation when the delivery process is without exploitation.
blablabla123··on Ask HN: How did you switch to part time?
I started contributing to a lot of smaller projects, both paid/unpaid, my own/others'. At the next job change I mentioned that I need permission to finish a project and HR offered me part-time with a lot of flexibility. That said BigCorps usually are more open to part-time or might even have fixed programs so not any negotiating might be necessary. But generally I'd ask when it's clear they really want to hire you.

Once you've had part-time experience it's easier to continue at the next place. By the way, people might try to nudge you into fulltime once you're there so quite some discipline is needed to keep a fixed schedule.

blablabla123··on Ditch Bitcoin: IMF Urges El Salvador to Rethink Crypto
To be fair non-crypto (financial) Economy is struggling as well.
blablabla123··on Ask HN: How do you get out of a rut?
YMMV but what helped me during studies was for example to watch my favorite series and at least have the open book in front of me and eventually go into it. Also if there is any lengthy stuff you need to learn (I mean weeks or months) it might help to start with the most interesting yet possibly completely irrelevant and way over the top part. Other popular tips I used to hear from others include studying at night. Oh yes and some structure helps, I mean having a high-level learning plan that helps you slice your tasks and days. Also for practically every exam I used to write myself self-written summaries of the material. (5-30 pages depending on how lengthy/difficult it was; using colors can help as well for particularly boring stuff that boils down to memorizing) Not sure if it's an option but finding for a particular exam (if it's more than a month of learning) a study partner is also great help because you can keep each other motivated and try to explain to the other. (That requires actually understanding the stuff...) Personally I also skipped most of the lectures which were not mandatory for me and instead only went only to the practical lessons where we had to present our exercises.
blablabla123··on Introducing the new star-history.com – the missing GitHub star history graph
In the work context it's for me an indicator whether to choose a library or not - apart from last commit, handling of issues and PRs. It's frustrating to include deps with little community/contributor interest that sometimes even silently get delisted from package repositories.

That said, I also use them as bookmarks.

blablabla123··on Ask HN: What bachelor program is best to focus on mathematical modeling?
I'm not 100% sure about Mathematical Modeling. But given you checked out TU Delft you might as well check out Utrecht University. They have a very cool and hands on Math department and offer 2 week Summer schools to take a look - possible to get a cost reimbursement if that's an issue. Once you're there you can just ask what they recommend.

Edit: https://www.uu.nl/en/organisation/mathematical-institute/res...

blablabla123··on Kosovo pulls plug on energy-guzzling Bitcoin miners
What about Iota coin or just using GPG signatures?
blablabla123··on Minitel: The Online World France Built Before the Web (2017)
Actually it was similar in Germany with BTX. But also during the time where it was reasonably usable (~'96) it was way faster and cheaper than going on the Internet. BTX was shut down in 2007 though
blablabla123··on Toxic culture is driving the great resignation
A friend of mine also at some point disliked his job and convinced everybody to give him better equipment, more responsibility and a significant raise. From what he told it was really justified since they lagged behind tech-wise and then he stayed 1 or 2 years more. But it seemed they've put so much pressure on him that he needed a 1 year break from everything afterwards.
blablabla123··on Articles on Cyber-Warfare from the Modern War Institute at West Point
It's worrying how IT security is getting militarized because conventional conflicts are getting less (which is a good thing) and thus military staff might be getting bored/lacking opportunities.
blablabla123··on Why Germans remain so jittery about nuclear power
Actually the full "product life cycle" of Nuclear apart from mining is fully publicly discussed in Germany. I think the most interesting parts are recycling stages - if done - and (tentative) final storage. Both are a disaster especially the latter one. The infamous Asse II salt storage has severe problems with water influx which was up to 12 m^3 per day and 30 leaks at some point. Even the proponents of Nuclear don't want a final storage in their Bundesland.

Also there have been several accidents independently in Fukushima, 3 mile Island and of course Chernobyl. Even more modern reactor designs solve some failure cases but really not all.

Germany is already at almost 50% renewables. That's practically risk-free and the technology is there. I mean just look at all the battery tech craze. That said, Nuclear is heavily subsidized and no insurance in the world insures a Nuclear reactor.

blablabla123··on Why do 70% of families lose their wealth in the 2nd generation? (2018)
Chances are that by the time wealth gets passed on a sum in the same order of magnitude has been already saved by the (grand)children. Probably the greatest leverage is at a young age. Of course this requires teaching about personal finance.
blablabla123··on Ask HN: My boss doesn't think I'm doing good work, how to proceed?
I'd spend some time browsing through the ticket system and understand how colleagues handle tickets (duration, discussion section, difficulty of ticket). Also I'd check the code with a linter. So you can confidently say how you compare. Next time someone complains you can prove the opposite. Also I recommend sticking to process, commenting tickets as needed, marking them as blocked timely and generally making sure you're aligned with the PO/PM during each sprint.
blablabla123··on Ask HN: Have you ever enjoyed a backlog grooming meeting?
Grooming tickets that have already been started and identified to actually need grooming as well as keeping number of meetings to an absolute minimum. This way at least one person is fully engaged and there's no meeting fatigue...

(But I know the problem, extended grooming meetings can be the most draining of all...)

blablabla123··on Petition to open source Flash (2019)
There would be then an actual chance to fix them though :)
blablabla123··on Ask HN: Is HN becoming more an existential crisis echo chamber?
I can also confirm that in the past I noticed during not so busy times more of such posts. At the same time I was also wondering about all the posts in the recent days. But really, this isn't a normal year. Usually I would hardly be on HN during this time, probably it's for others the same.
blablabla123··on Are there any good companies anymore?
Late answer but still... Companies providing products for other tech companies, popular examples are places like Redhat, Canonical or many Telcos. Recently I've also seen a number of companies in the recycling/upcycling space. Also there are tons of small companies that are not startups, it's possible to find them on websites of local technology hubs.
blablabla123··on Are there any good companies anymore?
> at any company, you will be directly or indirectly providing capital support to AdTech/E-Commerce/Fossil-fuel industries at some level.

At many industries you won't. But it can be quite an effort to find such jobs - and of course succeeding at the interview unless salary/location are suboptimal.

blablabla123··on Ask HN: What is your spiritual practice?
That, also considering things like Gödel Incompleteness, Halting problem, P vs NP being so difficult, Emergence, divergences and intrinsically probabilistic theories in Physics: that already feels sufficiently counterintuitive and supernatural to me. At least there is a vast area of things not yet understood
blablabla123··on OsmAnd 4.1 adds inital support for Android Auto
I mean you could contact your local city and ask if you could license their data as Open Data Commons Open Database License. Actually I once did this for a Wikipedia article once to copy text from the local town's website.
blablabla123··on Ask HN: Intercepting HTTPS – How can we trust anything?
True which kind of excludes the usage of Squid, but that's even more effort because either one specific domain needs to be targeted or a whole cluster of domains. I mean the moment someone finds this out and publishes the public cert that has been used on HN the CA that issued it will be out of business within a month. Afterwards there would be a lot of fuzz and everybody might go all-in on CT.

IMHO the most realistic attack vector in this context is a bug in TLS or a popular implementation that is being leveraged to target an individual. Whoever is in this situation, should seriously consider the way he or she uses the internet...

blablabla123··on Ask HN: Moving from tiny websites to serious tech skills?
> I would invest in learning Rails 7 and Hotwire

I'd definitely agree with Rails. IMHO it has been defining Web development for a long time. Even today patterns from Rails like are copied outside of the Rails context. Service Objects seem to be a recent example.

Hotwire seems definitely cool tech but after having been exposed to Ruby on Rails it's possible to go into various directions. (Classical server-side rendering, Hotwire or e.g. React-based SPAs)

blablabla123··on Ask HN: Intercepting HTTPS – How can we trust anything?
> The proxies like Squid can do HTTPS intercepting so I was wondering what's the point of TLS anyway?

If you 1) choose to use a proxy and 2) that is a proxy you don't trust, then TLS is pointless for your use case. (Edit: you need to actually activate proxy usage)

I'm using home internet since the mid 90s and I think none of the ISPs I ever used required a proxy. (Mobile excluded, I'm certainly no mobile expert anyway) But I'm aware of ISPs in the late 90s that required ISP proxy usage.

Personally at some point I had set up a local squid to speed up my internet. But today? I think only really bad ISPs and some corporate networks use that. In the latter case it might make sense since you deal with corporate data/code that is owned by BigCorp anyway.

Regarding the CA stuff: yes sure but well, that's the point of the CA. You trust it, some OSs require you to explicitly install those if that matches your risk profile. But really, if you're at that point, maybe the far riskier attack vector is someone shoulder surfing or stealing your laptop?

That said, yes there's certificate transparency but I think it's still experimental and at that level of paranoia you might be optimizing/focussing on the wrong thing.

blablabla123··on Ask HN: How do you stick to projects?
> I always seem to find an excuse as to why it's not worth continuing, right before actually accomplishing anything with the tool/skill in question. ... As such, I spend many days feeling like the donkey in front of the stack of hay and the pail of water.

I can really relate to that. It's necessary to choose something that is not too far out of the comfort zone. Like choosing something novel is good but the majority of the libraries/tools should not be new. That's key to be able to both start and continue a long time. I'd make sure the first proof-of-concept can be done within a month, afterwards I'd either stop the project or continue. Otherwise it's just too frustrating.

Afterwards you can still build stuff on top. If the problem is open ended but has a reachable first plateau that provides a basic use case this can be a nice "rabbit hole project" that you can spend an infinite amount of time on if that's what you're looking for.

blablabla123··on An NFT without a blockchain
Originally I meant author of the piece who would confirm the sale. But basically anyone who feels like writing into the commit log, which can be a creator, a consumer for confirmation, a trustee or a clearing entity that creates merge commits. Even multiple commits by the same person are thinkable if there are handshakes.

> The whole point of a blockchain is for people who can’t trust each other.

I guess that's a very valid point and from my understanding the anonymity baked in is quite unique. And yet, even if I bought say coffee from an independent online market. Probably it's good to have a chain of trust to the seller to know that it's high quality. (Like Amazon reviews)

After all this is what GPG or x509 provide, a chain of trust.

blablabla123··on An NFT without a blockchain
I guess the one where the commits are signed by the author. If there are forks, good for the author since these then are backups.

Disclaimer: I have only a vague idea about the whole underlying tech but I've also been wondering if there isn't a simpler approach.

blablabla123··on Log4j 2.16: Certain strings can cause infinite recursion
Definitely there's no reason why Java libraries couldn't be as polished as in other popular languages. (Or why every Enterprise pattern should be present.) It's easy to just consume libraries and complain when they fail instead of contributing. Although I realize that a large part of the user base is corporate and just getting a permission to contribute during work hours can be problematic.
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