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From one author's home page (Jean-Pierre Eckmann - https://fiteoweb.unige.ch/~eckmannj/publications.html), the latest version of full paper:

Walks in Rotation Spaces Return Home when Doubled and Scaled (with Tsvi Tlusty) Physical Review Letters 135, 147201 (2025)

https://fiteoweb.unige.ch/~eckmannj/ps_files/ETPRL.pdf



You make a lot of interesting (and colorful) points, but I'm not sure crisis is the right word. When you write:

> Masculinity has always been in crisis and that crisis has been used reliably to sell men all kinds of stupid shit for a century and if we're honest, probably a LOT longer than that.

...I feel like I could change it like this and it would be equally "true":

> Femininity has always been in crisis and that crisis has been used reliably to sell women all kinds of stupid shit for a century and if we're honest, probably a LOT longer than that.

I'm not sure what it is other than some general insecurity common to humanity.


I vaguely recall a line from a sociology lecture, to the effect that masculinity is always in crisis because it has to be refashioned every generation and culture to fit the current situation. Femininity doesn't change as much because babies are pretty much the same everywhere.

Until quite recently (~100 years?), child-rearing was the socially approved center of female life in most cultures (obviously many women avoided it, just like many men avoid the tropes of masculinity, but it was where social pressure would move you) and babies and children are an enormous amount of work (1). So as the economic, cultural and material world changes what it means to be a "man" can change, but what it means to be a woman didn't start to change until much more recently. So Masculinity has been in crisis for millennia- always worried about lack of manly virtues (2)- because it has to be constantly changed to fit with the times.

1: Personal experience, 2016-present.

2: See, e.g. https://acoup.blog/2020/02/07/collections-the-fremen-mirage-... for a discussion of how people of Caesar's day viewed their decadence


I mean, I used the word "crisis" because that's what men use when discussing it. This is a pretty good writeup I found: https://parisinstitute.org/on-the-crisis-of-white-masculinit...

And you're absolutely correct that the lions share of it can be directed at women too, though they tend to use different words. Women take down other women for being too sexually available, or not sexually liberated enough; they take them down for dressing to impress men, or trying to seduce other women; for wearing the same dress to multiple occasions, etc. etc. etc. It's an equally irrational set of made up rules to justify people being shitty to one another.

I would argue the masculinity crisis is unique only in that it occurs in a largely privileged and advantaged group, which prevents a lot of the "rallying" that one sees in actually oppressed groups of people and causes a lot more infighting.

And I mean, all of this could be led into quite easily a discussion about capitalism's ongoing alienation of everyone from everyone and everything, because when you feel that yawning chasm in your soul, you're much more primed to consume products to try and fix it. But that's a whole other topic and HN usually doesn't like those kinds of discussions.


Sacha Chua is an undersung emacs hero. She has faithfully published Emacs News for so long, quietly pushing good things forward, quietly helping people understand the weird thing about emacs ... there actually is a "there" there.


I agree. I follow her on X/Twitter to get notifications for her newsletter.


I just subscribe to her RSS feed like a normal person :D


Incredible contributor in both technical and organizational ways. And nice as hell too.


When I was about 20, I went to the local Barnes and Noble to find a book about programming.

Picked up the O'Reilly Javascript book from around 2000. Had no idea what javascript was, just wanted to learn how to program and trying to pick the most popular language.

$40 later, I got home and started reading! Very confusing, the first half of the book covered the language runtime (I think?) and the second half covered the browser sandbox, and it took me 200 pages to realize that I can't easily read or write to files on my machine with this language. Not what I was hoping for!

Back to Barnes and Noble, another $40 and I came home with the O'Reilly camel book, Beginning Perl I think? Cover to cover read, probably the last time I did that with a programming manual.

Decades have passed, I'm in the same camp as those that prefer Ruby now, but man what a breath of fresh air Perl was back in 2000.


That would be "Programming Perl" by Larry Wall. For me too it was the only programming book of that size I was compelled to read cover to cover. Larry is a great writer but maybe that's to be expected from a linguist. If Python is the number cruncher's favourite language Perl (and subsequently Ruby) must be the linguist's favourite. I got into programming after being intrigued by regular expressions in the advanced section of a chapter on Search And Replace in Dreamweaver 3 Bible back in 2000. At the end of the section there was a footnote to Jeffrey Friedl's "Mastering Regular Expressions" which I read cover to cover. Most of the examples were written in Perl as it was the only language with regex support so deeply baked-in so I had to then go to the source - "Programming Perl" by Larry Wall.


Ah Ruby, the only OOP without the stink.


Keto community generally recommends replacing carbs with fat and keeping protein constant. Protein consumption is almost a constant (with some variability due to workout regimen, etc).

I think of it like a see-saw, with protein level being the axis of rotation (ie., it stays the same). Now you have 2 remaining macro variables: carbs and fat. If you decrease one, you need to increase the other or else caloric intake might be too low.

Keto community generally refers to the diet as Low Carb High Fat because not eating enough fat can cause problems on the diet.

Edit: To be clear, assuming sufficient consumption of protein, if calories are still deficient, keto community recommends making up the deficit with fat rather than protein.


I agree that this should always be considered, no matter the activity. But it is hard, and games like Chess make it particularly challenging.

I will start a game of Go, completely relaxed and with the goal of staying relaxed and enjoying the game. Sometimes it works if my opponent falls behind early, but if my opponent is worthy... watch my heart rate over the course of the game.

There is no point in playing if you don't care about the outcome. I wish there was, I wish it was like making a painting, I wish it was nothing more than making something beautiful with the go stones.

It's impossible to play as much Chess as he does and truly not care, but I think he is figuring out ways to care differently, and that might be key.


I loved that manual too. I think we got a slightly different version with our IIGS, but I loved how inviting it was. I was probably 11, maybe 12.

15 years later in grad school I found a copy lying on a chair in a computer science classroom. I think it aged well.


When I reread it, I realized I've been programming BASIC in every computer language I used since I learned BASIC. That includes C, C++, Python, Perl, and even LISP. Well, not LISP.


Cue the org-mode brigade! (Of which I consider myself a member.)

I haven't used FreeMind specifically, but when I hear hierarchical organization with folding, I remember the rabbit hole that I fell into 20 years ago...and still haven't climbed out quite yet. From Shadow Plan[0] on Palm OS, through so many others, and landing at org-mode for the last decade or so.

0: http://www.codejedi.com/shadowplan/downloads.html


Yes! Shadow Plan! I used that, too. Used it to organize my learning material. Then, I converted the outline to flashcards in SuperMemo.


I have this also. So many things to say I don't know where to begin. I feel like there is a distinct difference between the experiences of seeing the images when you are falling asleep vs seeing the images when you have recently come out of sleep. And then there is a third state where you have recently come out of sleep but you aren't done sleeping yet so you are also falling back to sleep. This last one often allows me to start having a lucid dream.

1) Weird things like this happen to me most often in the early morning hours when I'm still drowsy but I've woken up for a few minutes.

2) It is sometimes accompanied by a "whooshing" sensation that used to frighten me and usually caused me to "back out" into normal consciousness. Eventually I learned how to relax and let it unfold without panicking. Quite often I have the sensation of rolling out of my body, off the bed and onto the floor.

3) I am paralyzed when it happens, in the sense that if I move my hand, the hand that moves is a dream hand. My real hand of course doesn't move. It doesn't feel like paralysis because I can "move" in my dream. But I am consciously aware that my real body is lying still in bed.

4) I have to be very careful not to wake myself especially at the beginning (edit: and being careful is paradoxical because if I am too careful then that will wake me too, sort of like the paradox of needing to be both loose and tight in sports). I am also aware that if my wife coughs or makes some kind of noise, I might wake up. I have discovered an odd remedy for this however: if I make "dream noise" - for instance, if I shuffle my feet loudly in the dream - I am less likely to be woken by real noise from the real world.


I put Calvin and Hobbes up on the pedestal next to Winnie the Pooh (the first two books by AA Milne). It’s a weird connection between being an adult and being a child. Like a bolt of lightning... that somehow repeats itself strip after strip or chapter after chapter. I just count myself lucky for being exposed to it.


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