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m_dupont

144 karma · joined August 27, 2022

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m_dupont··on Civic Hygiene – avoid building technologies that could be used by a police state (2013)
One of my favourite tweets, which unfortunately I can't find again was:

"My ethics teacher has gotten his sons girlfriend pregnant. I think about this often"

Reply: "To be fair, you have to be really good a ethics to get away with that"

m_dupont··on Civic Hygiene – avoid building technologies that could be used by a police state (2013)
I think of it like so:

All the great people in history who would be regarded as ethical never took an ethics course.

Its hard to know whether an ethics course makes people behave ethically, but its clearly not a necessary requirement to ethical behaviour

m_dupont··on The glass backbone: Why the Army's logistics will break in the next war
I'm also loving their phrase "on a nonlinear battlefield"

... not sure what a linear battlefield would be

m_dupont··on Why skilled workers come to Germany and then leave again
I lived in Germany for seven years and by the end I was fluent. B1 is a very low bar to pass, I know because I've done it.

Sorry to say, but the rule is fair. If you want to be a permanent resident, put in a little bit of effort to integrate into the country that you would like to call home.

m_dupont··on Failing grades soar with AI usage, dwindling math skills in Berkeley CS classes
I had a flipped classroom for my topology lecture. It was one of my absolute favorites.

We had no lectures, the teacher just gave us a short, concise textbook to read a chapter of every week.

In class time was devoted to discussing and problem solving.

But yes, it only worked because we were a small class of 15 math students

m_dupont··on Ask HN: How can we solve the loneliness epidemic?
I say this with the best of intentions: that cynicism of yours will keep you lonely
m_dupont··on P-computers can solve spin-glass problems faster than quantum systems
Very interesting article.

This makes me wonder: Would it be possible to implement an equivalent to Shor's algorithm on a p-computer. Maybe the quantumness isn't necessary at all

m_dupont··on Elon Musk and the right's war on Wikipedia
I think there is some room for debate here about the political bias of wikipedia, and there is some evidence to suggest a left wing bias.

However this article is pretty venomous and the author doesn't even make an attempt at masking their disdain for the other side. It's not written in good faith.

I'd prefer if someone shared a more cool-headed article on the subject

m_dupont··on How has mathematics gotten so abstract?
you're not, the proof is a famous error known as zenos paradox. Its only an apparent paradox, and indeed it's been disproven by observing that things do in fact move
m_dupont··on A fast, strong, topologically meaningful and fun knot invariant
very clear and detailed answer. thankyou very much
m_dupont··on A fast, strong, topologically meaningful and fun knot invariant
To their credit, the paper is unexpectedly fun.

I'm not understanding the "separation power" thing, what does that imply?

m_dupont··on ChatControl: EU wants to scan all private messages, even in encrypted apps
If chat control gets passed it will also be a law, passed by legislation.

The point is that laws can be unjust.

m_dupont··on [dead]
May or may not be true but it's completely unrelated to tech, science or startups.

This should be moderated

m_dupont··on I built an ADHD app with interactive coping tools, noise mixer and self-test
Small piece of product feeback related to grammar:

The landing page asks, how are you feeling? For which the possible responses are "Anxiety", "Procrastination" ... "Overwhelm".

When a person says, I a X, X is always an adjective. One doesn't say "I am Irritability" one says "I am irritable".

All of these options are nouns, except for "Overwhelm" which is actually only a verb but is being used incorrectly as a noun.

The correct responses would be "Anxious", "Hyperactive", "Overwhelmed", "Irritable".

Except for "Procrastination", which doesn't have any associated adjective. You might need to rephrase the whole header

m_dupont··on Ask HN: What was your path toward expat?
I have some more tips, specifically pertaining to Germany and your requirements:

> Language: In Germany you can get around no problem with 0 German. Me personally I downloaded Duolinguo the day before my flight and I did just fine learning as I went.

> EU financial foundation: I'd say you can just build a US financial foundation then send it over via bank transfer when u arrive.

> Established living situation: If you get accepted to a german university, try to show up at least a month before courses start. Take that time to open a bank account, get insurance, enrol and find an apartment. Do NOT try to find a rental when you don't have boots on the ground, there are a bunch of scams that target international students trying to secure accomodation. For your first month or so, just stay in an airbnb until you find a place you like long-term

>

m_dupont··on Ask HN: What was your path toward expat?
My Qualifications: I moved to Germany for 7 years

I can only add my voice to what others have said: Just apply to universities and get your student visa.

In general it is very difficult applying to jobs in countries from abroad, and in many countries they have laws requiring that companies must prove that they couldn't source talent locally first.

Meanwhile student visas are very easy to get, and after you are in the country on a student visa, you can seek part time work, or get a job as soon as you graduate. Many countries offer fast-track residence permits for expats who have graduated from one of their universities.

My story: I applied to a german university, got accepted, and got the student visa relatively painlessly. After graduating I found a job relatively quickly and got a work permit.

m_dupont··on The Gang Has a Mid-Life Crisis
The link between DEI and the rest of the content of the article is not well-articulated at all.

Leaving aside whether one agrees with the premise, his argumentation is disjointed at best.

He is attributing various symptoms of these tech leaders behaviour to them clinging to a bygone world, however he hasn't really articulated any of these symptoms beyond them thinking that "DEI" is the cause of all their problems.

He can't even back it up with a single quote or published piece from one of these tech moguls which displays the opinions that he characterizes them to have.

Articles as sloppy as this shouldn't get 230+ points on hackernews

m_dupont··on Ask HN: Who is hiring? (September 2024)
martini.ai | Remote | Worldwide (UTC−05:00) | Full-time | Multiple Roles | $70k - $180k (location-based) + equity Join martini.ai as we transform the $2 trillion private lending industry. We use cutting-edge AI and deep market insights to provide credit risk estimates for private companies.

We are a small, scrappy team (4 engineers + UX consultants + CTO) with VC funding. The co-founders (CEO and CTO) are repeat entrepreneurs, ex-YC, and ex-Wall Street.

We are looking to bring in people to fill multiple roles.

- Senior Full-Stack Software Developer

- Senior Backend / Devops Engineer

- Senior Machine Learning Engineer

- Quantitative Analyst

We need people who are resourceful, independent and curious, who can thrive in a startup environment. But above all we need people who can be generalists; we are a small team and everybody wears multiple hats. So if you're a dev who is looking to learn a bit about finance, or a quant who is looking to learn a bit more about software, martini.ai is the place for you. Prior experience in finance is a huge plus.

Tech stack: Python, Pandas, React, Next.js, AWS, Pytorch

Interested applicants should reach out to me, Martin Dupont, at my email: DELETED: Applications are now closed.

m_dupont··on The binding of cosmological structures by massless topological defects
Okay we are are getting a little lost in definitions here, but nonetheless.

You can solve the above by remembering that the dirac delta is the limit of a series of functions.

If you take your delta to be lim a -> 0 N(0, a) where N() is the normal distribution, then you can see that in your above equation, you then have two limits. lim t -> 0 and lim a -> 0. By swapping the order of the two (which is a dubious operation), you can send t to zero first then a to zero, and the result is zero.

So in one way, it can be deformed to zero, in another way it can't, because it's 0 times infinity .

However, the thing to focus on is that dirac deltas aren't actually valid points in the solution space of partial differential equations. They aren't functions, and they aren't actually physically real.

Come to think of it, that would probably exclude them from being TDs a-priori. Because a TD must be a solution to an underlying physical equation, and that solution must be deformable to zero. But if it's not a solution to a PDE (because it doesn't live in any valid hilbert space), then it can't be a TD.

m_dupont··on The binding of cosmological structures by massless topological defects
I don't disagree with what you've said about distributions, however I don't think that the fact that these shells are created from dirac delta functions is sufficient to call them topological defects.

Topological defects are solutions to the underlying physical equations that are of a different homotopy class to the vacuum, and these simply aren't in a different homotopy class, as I can smoothly deform them to zero, by sending the radius to zero or sending alpha to zero.

Argued another way: a point charge can be modelled as a dirac delta charge distribution, but nobody would argue that a point charge is a topological defect

m_dupont··on The binding of cosmological structures by massless topological defects
Also, strictly speaking these aren't topological defects.

They are massless spherical shells, i.e. a sphere embedded in 3d space and thus can be continuously deformed to a point by sending the radius to zero.

Spheres are literally the second homotopy group and the homotopy group of flat space is zero. Q.E.D

m_dupont··on The binding of cosmological structures by massless topological defects
Agreed. This paper is pretty much pointless.

Its extremely implausible, putting it generously, that such fine-tuned structures could even form. They mention at the end "this paper does not attempt to tackle the problem of structure formation" but that feels like a colossal understatement.

I've studied physics myself, and I understand that sometimes people toy around with implausible theories solely for the sake of it but .... it seems like these peoples brainpower could be much better spent elsewhere.

m_dupont··on She Was 29. And Doctors Helped Her Die
Good article, doesn't belong on hackernews.
m_dupont··on Instinctive Sleeping and Resting Postures (2000)
I tried some of the positions in this article while trying to get used to sleeping on the floor in an attempt to fix my back pain. These hurt like hell
m_dupont··on Medellín's Green Corridors
I live here as a nomad. Job market is pretty bad. Haven't seen any official statistics but I've heard many locals anecdotally say that the pay even for people with econ / engineering degrees is pretty bad.

Lots of young people with advanced degrees just end up working in call centres, or onlyfans.

m_dupont··on Japan to introduce six-month residency visa for 'digital nomads'
I mean sure, but the chances of that ever being enforced are close to 0. I'm a full time digital nomad for over a year in various latin american countries, always on tourist visas. Nobody notices or cares.

The only time I ever had an issue is when entering the united states, the immigration department gave me a grilling because my passport showed that I was clearly a nomad and they expected me to be working online.

Go ahead, take that holiday.

m_dupont··on Neonatal circumcision associated with altered adult socio-affective processing
I think his point is more like the following:

every day we have the chance to observe thousands of thousands of circumcised men and we have been doing this for thousands of men, and so far, nobody has noticed any emotional issues with them.

it's not fallacious, its simply saying that we've (informally) looked at a lot of data and found nothing. I.e. evidence of absence

m_dupont··on Neonatal circumcision associated with altered adult socio-affective processing
Morality of the procedure aside, this is a very low quality study.

The most glaring omission is that they didnt account for possible confounding due to religious/political beliefs. To be fair, they acknowledge that this is a limitation, but I'd bet that this is possibly the main driving factor behind any differences in personality between the two groups.

We know for a fact that religious/conservative populations are markedly different across a variety of character traits, and they are also significantly likely to circumcise their child.

Any study that doesnt account for this is invalid IMO.

m_dupont··on AI Is Becoming a Band-Aid over Bad, Broken Tech Industry Design Choices
I see articles like this a lot and I haven't yet thought of a way to categorize them properly.

I think the author is simply being melodromatic and faulting companies like apple for not designing user interfaces that are perfect.

His concrete complaints against apple boil down to two points really:

* there's a lot of bloatware. / too many apps

* the apps/settings menus are hard to navigate.

My day job has me in the trenches right now trying to make good UIs and I can simply say that its hard. Moreover, if you ask the average consumer what they think of apple's UI I bet that most would praise it. If apple, the best company in the world at UI/UX can't make this guy happy, then I'm not sure who will.

His complaints against google have a similar tone. He complains that SEO has slowly eroded the quality of search results, which is true, but also SEO is an adversarial process. Given the value of being at the front page of search, people are strongly incentivised to game the system as hard as they can. It's a hard problem.

Not to be glib, but I'd like to see him try to tackle these problems before saying that big tech is "selling basic usability back to consumers".

Yes, the flaws he points out with usability of big tech products may be real, but I dont think it warrants the venom with which he writes the article.

m_dupont··on Ask HN: Who is hiring? (November 2023)
martini.ai | Remote | Worldwide (UTC−05:00) | Full-time | Multiple Roles | $70k - $150k (location-based) + equity

Join martini.ai as we transform the $2 trillion private lending industry. We use cutting-edge AI and deep market insights to provide credit risk estimates for private companies.

We are a small, scrappy team (3 engineers + UX consultants + CTO) with VC funding. The co-founders (CEO and CTO) are repeat entrepreneurs, ex-YC, and ex-Wall Street.

We are looking to bring in people to fill multiple roles.

- Senior Full-Stack Software Developer

- Senior Machine Learning Engineer

- Quantitative Analyst

We need people who are resourceful, independent and curious, who can thrive in a startup environment. But above all we need people who can be generalists; we are a small team and everybody wears multiple hats. So if you're a dev who is looking to learn a bit about finance, or a quant who is looking to learn a bit more about software, martini.ai is the place for you.

Tech stack: Python, Pandas, React, Next.js, AWS, Pytorch

Interested applicants should reach out to me, Martin Dupont, at my email: REDACTED because we already have too many applicants

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