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jarenmf

986 karma · joined September 3, 2020

I'm an atmospheric physicist
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jarenmf··on Friendships form via shared context, not shared activities
Having experienced both, I think individualism brings more freedom and independence which is crucial for some/most people.The cost is losing this tribal connection that gives you some sense of belonging and safety which fulfills the urge to be part of something. That's of course theoretically. In practice, the extended family is mostly a pain and a way to oppress individuals with different opinions.
jarenmf··on People hated shopping carts when they first came out
During the pandemic many stores in Germany left all the carts unlocked and it seems that some of them didn't go back to the old system. So probably they've realized it's a silly thing to do and maybe it actually bring more customers if you left the carts unlocked. I actually used to chose stores that don't require a coin to unlock the carts.
jarenmf··on Tell HN: The loneliness of a pretty good developer
That's how I feel now at my first post doc. I feel frustrated and bored already with no real mentorship or any prospect of growth. I'm really eager to be in a place where people love what they do and continuously be challenged. That's why I'm seriously considering leaving academia
jarenmf··on Ask HN: Is it true that any community that grows big enough, gets ruined?
Judging from the number of people I know IRL who read HN which is exactly zero, I would say it's niche.
jarenmf··on I fixed my broken monitor with a hair dryer
Bad caps was a very common problem in the old days, I remember I replaced the ones on my motherboard at least twice. The classical symptom was that heating the motherboard will allow the PC to start.
jarenmf··on Okular – Universal document viewer
Okular is my daily driver, I configured minimal vim keybindings and easy shortcuts for review tools which really enhanced my productivity. The configuration is also easily portable. Over the years, I build my own conventions for highlighting and reviewing.
jarenmf··on Ask HN: I’ve reached the crossroad – advice needed
I'm kind of in a similar situation, but instead of working I did a PhD in a field a bit far from computer science and eventually realized academia is not a place I want to stay in. Right now I'm thinking how to do the transition. I'm thinking of maybe doing data science, that way at least I can transfer some of the knowledge form my work in academia instead of starting from scratch but it is a difficult decision.
jarenmf··on Making friends on the internet
I made a lot of friends on IRC and internet forums a long time ago. It is much easier when you are anonymous and be truly yourself. I miss these communities nowadays and can't really find a replacement.
jarenmf··on Ask HN: Anyone highlight text as they read?
I do it all the time or just move the page slightly if I'm reading a PDF. Don't know why but some who it helps makes reading quicker
jarenmf··on Why I got a PhD at age 61
I think there are actually many advantages to doing a PhD at an older age. Especially after having a fairly long work experience and if you can bring that to another field say Biology.
jarenmf··on Aggregating away the signal in your data
Excellent article, aggregation can also obfuscate problems with sensors (for example, weird quantization or duplicating points). It is useful whenever you have high frequency time series to look at the data points for the highest resolution possible for short segments of few data points.
jarenmf··on Statistical Rethinking (2022 Edition)
Indeed, data.table is just awesome for productivity. When you're manipulating data for exploration you want the least number of keystrokes to bring an idea to life and data.table gives you that.
jarenmf··on Carbon dating is getting a major reboot (2020)
I don't see how it can be pretentious. Usually, I do it to avoid disturbing the flow of text reading.
jarenmf··on Carbon dating is getting a major reboot (2020)
Fair point :D I did it without much thinking but it certainly looks silly if I look at it now.
jarenmf··on Carbon dating is getting a major reboot (2020)
This is how the curve looks like for the curious [1]

[1] https://en.wikipedia.org/wiki/Radiocarbon_dating#/media/File...

jarenmf··on The medieval habit of ‘two sleeps’
Like others have pointed out, It's really difficult to operate on a different schedule than the rest of society. Eventually family, friends, and other activities pushed me to give up my evening "first sleep"
jarenmf··on The medieval habit of ‘two sleeps’
Same for me, I tried that for almost a year and the night hours were super productive and enjoyable no matter which activity I do.
jarenmf··on Ask HN: Why do profs supervise PhD students not smart enough to ever be peers?
Smart is a very vague criterion. What you need is people curios and intelligent enough to be able to do independent research and It's very difficult to judge whether someone would be a good scientist before trying them with real PhD work. This process takes years so there's no way to judge how smart or successful a PhD student will be. The master's work can give a hint of how serious the student is but it's not enough because it doesn't require the same degree of independence as a PhD.
jarenmf··on I went back to using a ThinkPad from 2012
I thought about doing the same for my T430 but found out it'll cost me ~400$ and several hours so I ended up buying a second hand t470s for 300$. I like my T430 but it is really heavy and bulky and the display quality is awful (really bad viewing angles).
jarenmf··on T-Shaped People and Academia
I'm familiar with the type of people you're describing, they are curios and creative and constantly looking for ways to improve things, these people are very rare (particularly in academia?) and really not easy to find. I don't think these criteria you mentioned will help since most of them are not necessary personal qualities, they are rather a group culture. If there are established good practices in the group (at minimum using version control, doing regular backups) new people will follow. I agree with you about the absurdity of the number of publications factor giving that the asymmetry between the values of publications.
jarenmf··on Literate programming: Knuth is doing it wrong (2014)
Aren't modern notebooks a form of Knuth's style literate programming, are there any differences? True, they are more mainstream in analytics where there's a need to explain concepts/results more than the logic of the code itself.
jarenmf··on Notes from the End of a Long Life
https://archive.is/iDC9U
jarenmf··on Show HN: I'm 15 and building a live quiz app for classrooms: Quickz
That's truly impressive, keep going! I hope your teachers and classmates were interested/supportive.
jarenmf··on JPEG: Image Compression Algorithm (2017)
Essentially higher frequencies are represented using fewer number of shades and many of them will go to zero. Not only due to human cortex but also that there are not much information at high frequency region most images.
jarenmf··on JPEG: Image Compression Algorithm (2017)
That's interesting, I'm a bit confused, in this case high frequencies are not removed they are just quantized like all other frequencies. How is this reconciled with the assumption that high frequencies carry little information?
jarenmf··on Research explores why popular baby names come and go
This offer a more elaborate analysis in the original paper [1] which seems much more interesting than the article. And BTW, they mention they did not receive any funding :)

[1] https://arxiv.org/abs/1910.13385

jarenmf··on Research explores why popular baby names come and go
They seem to have a preprint here [1] [1] https://arxiv.org/abs/1910.13385
jarenmf··on The weight of the clipboard
If usually delete to another register to avoid that, "dd for example :)
jarenmf··on A neuroscientist prepares for death
If I was ever to know of my upcoming death, I hope to have that courage and clarity of thought to face it with such dignity.
jarenmf··on Why can’t you design noise in frequency space?
Sometimes certain measuring instruments can be assumed to have such profiles for noise, in this case generating noise is useful for Monte Carlo based modeling or uncertainty propagation.
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