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    1. What are some foods you really like, from countries not well known for great cuisine?

      It doesn't need to be from countries known for "bad" cuisine. Just try to avoid obvious countries like Italy, France, Japan or China (as a handful of examples). Having said the above, that is also...

      It doesn't need to be from countries known for "bad" cuisine. Just try to avoid obvious countries like Italy, France, Japan or China (as a handful of examples).

      Having said the above, that is also coming from a western (European) perspective. If those countries are not well known for their cuisine in your area, then feel free to choose them!

      53 votes
    2. Brainless jellyfish demonstrate learning ability

      Veronique Greenwood In the dappled sunlit waters of Caribbean mangrove forests, tiny box jellyfish bob in and out of the shade. Box jellies are distinguished from true jellyfish in part by their...

      Veronique Greenwood


      In the dappled sunlit waters of Caribbean mangrove forests, tiny box jellyfish bob in and out of the shade. Box jellies are distinguished from true jellyfish in part by their complex visual system — the grape-size predators have 24 eyes. But like other jellyfish, they are brainless, controlling their cube-shaped bodies with a distributed network of neurons.


      tap/click to know more...


      That network, it turns out, is more sophisticated than you might assume. On Friday, researchers published a report in the journal Current Biology indicating that the box jellyfish species Tripedalia cystophora have the ability to learn. Because box jellyfish diverged from our part of the animal kingdom long ago, understanding their cognitive abilities could help scientists trace the evolution of learning.

      The tricky part about studying learning in box jellies was finding an everyday behavior that scientists could train the creatures to perform in the lab.

      • Roots of mangroves

      Anders Garm, a biologist at the University of Copenhagen and an author of the new paper, said his team decided to focus on a swift about-face that box jellies execute when they are about to hit a mangrove root. These roots rise through the water like black towers, while the water around them appears pale by comparison. But the contrast between the two can change from day to day, as silt clouds the water and makes it more difficult to tell how far away a root is. How do box jellies tell when they are getting too close?

      “The hypothesis was, they need to learn this,” Garm said. “When they come back to these habitats, they have to learn, how is today’s water quality? How is the contrast changing today?”

      • Setup

      In the lab, researchers produced images of alternating dark and light stripes, representing the mangrove roots and water, and used them to line the insides of buckets about six inches wide. When the stripes were a stark black and white, representing optimum water clarity, box jellies never got close to the bucket walls. With less contrast between the stripes, however, box jellies immediately began to run into them. This was the scientists’ chance to see if they would learn.

      After a handful of collisions, the box jellies changed their behavior. Less than eight minutes after arriving in the bucket, they were swimming 50% farther from the pattern on the walls, and they had nearly quadrupled the number of times they performed their about-face maneuver. They seemed to have made a connection between the stripes ahead of them and the sensation of collision.

      • “It’s amazing to see how fast they learn,”

      Going further, researchers removed visual neurons from the box jellyfish and studied them in a dish. The cells were shown striped images while receiving a small electrical pulse to represent collision. Within about five minutes, the cells started sending the signal that would cause a whole box jellyfish to turn around.

      “It’s amazing to see how fast they learn,” said Jan Bielecki, a postdoctoral researcher at the Institute of Physiology at Kiel University in Germany, also an author of the paper.

      Researchers who were not involved in the study called the results a significant step forward in understanding the origins of learning. “This is only the third time that associative learning has been convincingly demonstrated in cnidarians,” a group that includes sea anemones, hydras and jellyfish, said Ken Cheng, a professor at Macquarie University in Sydney, Australia, who studies the animals. “And this is the coolest demonstration, replete with physiological data.”

      The results also suggest that box jellyfish possess some level of short-term memory, because they can change their behavior based on past experience, said Michael Abrams, a postdoctoral researcher at the University of California, Berkeley, who studies the neuroscience of jellyfish sleep. He wonders how long the box jellies remember what they’ve learned. If they are taken out of the tank for an hour and then returned to it, do they have to learn what to do all over again?

      Future work

      In future work, researchers hope to identify which specific cells control the box jellyfish’s ability to learn from experience. Garm and his colleagues are curious about the molecular changes that happen in these cells as the animals incorporate new information into their behavior.

      They wonder, too, whether the capacity to learn is universal among nerve cells, regardless of whether they are part of a brain. It might explain their peculiar persistence in the tree of life.

      “There are organ systems popping up and going away all the time,” Garm said. “But nervous systems — once they are there, they very rarely go away again.”

      Perhaps the ability to learn is one reason they are still here.

      Seattle Times - Link to the article

      9 votes
    3. Fun fact: Taiwan claims exclusive sovereignty over mainland China and Mongolia as well as parts of Russia, India, Myanmar, Pakistan, Bhutan, Afghanistan, Tajikistan, and Japan

      Decided not to post a single link as there are tons of different articles about different aspects of it on Wikipedia. It's a whole thing! Exclusive mandate - Republic of China (Taiwan) and...

      Decided not to post a single link as there are tons of different articles about different aspects of it on Wikipedia. It's a whole thing!

      It seems like this is a leftover from the Chinese civil war and/or Chiang Kai-shek's authoritarian and murderous rule because one of the above articles does mention that these territorial hopes haven't been worked towards for many years:

      Originally placing high priority on reclaiming the Chinese mainland through Project National Glory, the KMT now favors a closer relation with the PRC and seeks to maintain Taiwan's status quo under the Constitution of the Republic of China. The party also accepts the 1992 Consensus, which defines both sides of the Taiwan Strait as "one China" but maintains its ambiguity to different interpretations.

      It goes further back than that though, probably to 1966 when Project National Glory was abandoned:

      [invasion of mainland China] as the initial stage of reunification was effectively abandoned after 1966, although the Guoguang planning organization was not abolished until 1972. The ROC did not abandon the policy of using force for reunification until 1990.

      Thought this was all quite interesting, so I wanted to share! It is not exactly light reading though so I also wanted to ask for documentary recommendations about this, and of the Chinese civil war in general, if anybody knows of any good ones?

      Don't mind me, just finding myself going into a lot of Wikipedia rabbit holes lately 😊

      22 votes
    4. Album of the Week #1 - Mazzy Star - So Tonight That I Might See

      This is Album of the Week #1. This week's album is Mazzy Star - So Tonight That I Might See Year of Release: 1993 Genre(s): Dream Pop, Neo-Psychedelia Country: United States Length: 52 minutes...

      This is Album of the Week #1. This week's album is Mazzy Star - So Tonight That I Might See

      Year of Release: 1993
      Genre(s): Dream Pop, Neo-Psychedelia
      Country: United States
      Length: 52 minutes
      Album.Link

      Excerpt from Pitchfork

      The undertext of a decision to push a female frontperson further into the spotlight is that beauty (or, more cynically, sex) sells. But capitalizing on Sandoval’s image perhaps unintentionally trivialized her role in the band, making her seem like merely the Nico to Roback’s Lou Reed. (Nico, of course, spent a lifetime reclaiming her agency from the myth of the muse.) But So Tonight That I Might See is not about keeping one musician behind a curtain. The creative partnership between Roback and Sandoval is the heart of Mazzy Star. They knew that the band would wilt if pushed into the spotlight more than necessary. So they stuck to the shadows, two quiet, introspective souls deeply engaged in one dream. Together, they drifted into a hazy unknown.

      Discussion points:
      Have you heard this artist/album before? Is this your first time hearing?
      Do you enjoy this genre? Is this an album you would have chosen?
      Does this album remind you of something you've heard before?
      What were the album's strengths or weaknesses?
      Was there a standout track for you?
      How did you hear the album? Where were you? What was your setup?

      --

      Album of the week is currently chosen randomly (via random.org) from the top 5000 albums from a custom all-time RYM chart, with a 4/5 popularity weighting. The chart is recalculated weekly.
      Any feedback on the format is welcome ~~
      17 votes
    5. What are you reading these days?

      What are you reading currently? Fiction or non-fiction or poetry, any genre, any language! Tell us what you're reading, and talk about it a bit.

      18 votes
    6. Why am I becoming a teacher?

      First of all, this is a lot about me and myself and I'm sorry it's a bit self-centered; it's been bouncing around my head and I want to get it out somewhere. Please let me know if this isn't...

      First of all, this is a lot about me and myself and I'm sorry it's a bit self-centered; it's been bouncing around my head and I want to get it out somewhere. Please let me know if this isn't appropriate here.

      Secondly, teachers or those in training to become one: I want to hear your thoughts on this question.

      Why am I becoming a teacher?

      I've been finding that I'm asking this question of myself a lot lately. My goal is and always has been the same for years: I want to teach, I feel good teaching, I feel I have a purpose and that purpose has been what's driven me forward when I wanted to give up. Truly though - why do I want to be a teacher?

      I could do the same style of work in other settings. I could become a tutor, self-employed or otherwise, and assist students in a specific capacity. I could be a YouTuber, creating video essays on self-researched subjects of passion. I could be a writer, bringing the same content through literature to a wholly different audience. In all of these, there is the potential to make more money, reach a wider audience, and leave a more indelible impact upon the world.

      So, why am I becoming a teacher?

      15 years ago, I dropped out of college, suffering depression. I wasn't the only one depressed; aside from the millions of others reeling from mental health issues, the economy was entering a recession in 2008. I was a NEET - jobless, out of school, and seemingly stuck. My family (read: my dad, stepmom, and sisters) had abandoned me - they had other matters to worry about than their wayward son - and I was fortunate my mother whom I'd dissociated from years before reached out to me. With her help, I got back on my feet, moved across the country, and began looking for work with slight hope. I volunteered one day to read at the school she worked at, and the teacher in the room went to the admins and demanded I be hired on the spot. I was.

      Thus began a journey of discovery. I was good at something, and I felt good about doing it. I felt something to replace my depression and self doubt: worthiness.

      Over the years, I honed my craft and continued sporadically attending school - when I could afford it - in order to become able to lead my own classroom in our private school/daycare. That was 7 years ago, and I've been teaching prek (4-5 year olds) since then. I'm able to teach reading, writing, mathematics, chess, life lessons, history, biology, astronomy, geology, entomology... the list goes on and on. I have a passion for learning, and for sharing that learning.

      Is that why I am becoming a teacher?

      The biggest obstacle to achieving my ultimate dream - teaching in public schools - was always the degree. I had dropped out of college twice - in 2008 and again in 2013 - before finally completing an Associates degree in 2016. I felt that, financially, getting my bachelor's would never happen. Massive student loan debt (private debt north of $30k) and low wages in childcare meant I wasn't getting anywhere. Life changes though, and the stars aligned - the private debt was written off, I got out of defaulting on my federal loans, and just in time to qualify for a state program to get me in school again and have a full ride scholarship. It was happening!

      Now we live in a post-pandemic world... Do I still want to become a teacher?

      At first, attitudes were siding with teachers. There was sympathy for their struggles and worries, the low pay and high barrier to entry. That quickly changed, as it did for medical workers and others in the pandemic world. Teachers struggle more now than they have before. Fewer resources, more troubled students that desperately need help, more resistance from parents and communities trying to prove that teachers and schools aren't necessary in the way they have been, and more burnout and shortages across the nation.

      I see all this and yet I press on. Why?

      The thing is, I'm not sure. My resolve is strong and I've been persistent and diligent in my schooling. I've worked too long and hard to give up this opportunity. Why do I still want to teach, though? Why not find an administrative job with potentially more pay and better work environment? Why not leave education altogether and use my skills elsewhere?

      It comes back to what drove me forward in the first place: purpose. I feel in direct connection with the future by doing what I do. I feel like in some miniscule, imperceptible, but meaningful way, I can help create a better world tomorrow by doing what I do today. It gives my life meaning, and nobody and nothing can take that from me. I've changed hundreds, potentially thousands, of lives already. Students return years later to tell how much I meant to them - these are students I had known at ages 4 and 5 who still remember me a decade later!

      So, why am I becoming a teacher?

      Because someone has to do it, and that someone might as well be me. I enjoy my work, I enjoy the ups and downs, I enjoy the struggles and challenges and overcoming them, I enjoy making difficult topics understandable to young minds, I enjoy what I do even when I hate it. To me, that's love.

      With good luck and a positive outlook, I'll be graduating with a degree in Early Childhood Education next September. It may not be prestigious, it may not make me a lot of money, but it will allow me to continue on the path I've set myself. Thanks for reading.

      26 votes
    7. Let's talk about friendships. What are some practices that help foster your most rewarding relationships?

      I find that while romantic relationships are quite specifically defined in our society, friendships don't seem to have the same universally understood characteristics or “road maps” for their...

      I find that while romantic relationships are quite specifically defined in our society, friendships don't seem to have the same universally understood characteristics or “road maps” for their development, so I find them interesting to discuss, especially considering the modern epidemic of loneliness many people are experiencing. Most people share the same understanding of what makes someone your romantic partner, but when does someone become your friend, vs. just an acquaintance? What makes someone a good friend or a bad friend - essentially, what can we expect from our friends, and what should we give in return?

      I remember a scene from the show “Love on the Spectrum” (a reality show about people with autism in the dating world) that stuck with me. One of the people on the show explained that because he didn't understand socialization very well naturally, he had taken it upon himself to study the psychology behind it for many years, to the point where he became quite a charming and socially capable guy. I'm not autistic, but I was homeschooled up to age 14. I believe it made me quite socially stunted, and I didn't really learn how to maintain friendships until my mid 20s. Instead of learning social skills naturally over building blocks in preschool, I was reading books and journaling about it as an adult. Looking back, I no longer resent it, because being forced to work on it like a skill seems to have benefited me in the long run, and after a very lonely early life, I now have many dear friends who bring me joy.


      I have a “system” of sorts that seems to work very well for me. There are three elements: consistency, vulnerability, and adaptability.

      #1. Consistency

      When people talk about their struggles with making or keeping friendships, this aspect is usually mentioned the most often. People are busy, schedules can get tight, and we all have a lot of things that get in the way of spending time with the people in our lives. Commonly, people aren't sure how often they should reach out to their friends, or worry that they are bothering someone who isn't interested in spending time with them. (Usually friends don't break up, after all, they just fade.) I think a lot of friendships are lost or missed because both people simply stop reaching out.

      I never take it personally when I ask someone to hang out once or twice and they don't respond, or it doesn't work out. I just give it some time and try again later, at least a few times. Also, I try to reach out without requiring much time or effort from the other person, like just messaging to tell them something that reminded me of them, without scheduling anything at the moment. It also helps to learn people’s preferred communication styles - some people might never respond to texts, but enjoy casual phone calls, or visa versa. Sometimes I miss my friends but I'm way too busy to do more socializing at the time, so I schedule something weeks or months in advance.

      Consistency can come in different forms, some people I see for short amounts of time each week, and others I only see a few times a year for quality time on a vacation. Both are good! Another part of consistency is making an effort to follow through on commitments - it's okay to cancel on friends a certain amount, but it's important to give notice and reschedule promptly.

      #2. Vulnerability

      A friendship needs consistency as a foundation, especially new ones. However, if you see someone every week and don't eventually learn personal things about each other, it can only go so far. And once you have introduced vulnerability, it can be difficult to find a balance. Many people worry about over sharing, and others struggle to recognize when they might be sharing too much. I try to match the energy of the person I'm interacting with. I don't come out swinging by mentioning my difficult religious upbringing and relationship with my parents (obviously,) instead, I ask people casual questions about their family, for example, and see what they're comfortable with sharing. When someone does share something vulnerable with me, I take note of it, and later on I tell them something of a similar nature about myself. Vulnerability is like a ladder - a ladder that is best climbed gradually.

      I find that men tend to struggle with vulnerability the most (perhaps to no one's surprise,) particularly in friendships between two men. A few months ago my husband found out that his mother had relapsed, and he mentioned that he wished he had a friend to talk to whose parent was also an addict. I told him that actually, one of our friends had a father who passed away from addiction, something I knew about him despite being friends with the guy for a shorter period of time, and I said maybe he should talk to him about it. Of course, this is a sensitive topic that some friends simply don't always share with each other, which is not necessarily a bad thing. But it got me curious about the likelihood of men sharing that information with each other, compared to a man sharing it with a woman, or to a woman sharing with another woman. Men and women alike have much to gain when we share vulnerable information with each other in a healthy way.

      (side note: I struggle with friendships with people who are very private, or are more likely to share after being prodded a bit. I ask questions, but I'm not likely to push someone who isn't giving a lot of information, so with shy people I sometimes struggle to bring the friendship to a closer place. Most of my closest friends are all extroverts, and I would like to figure out how to get to know my shy, quiet friends a bit better, without being invasive or too intense.)

      #3. Adaptability

      Where consistency is most important at the beginning of a new friendship, adaptability becomes more important later on, for the longevity of a friendship. An adaptive friendship can survive when people's interests, schedules, and circumstances change. If you know you can have a good time with someone in different environments, a friendship is more likely to survive when people move, change careers, have kids, generally grow older and more mature, etc.

      A good example is the fact that I had a lot of surface-level “festival friends” or “concert friends” in my mid 20s, and despite hanging out with them consistently for years, I'm not friends with most of them anymore. This is mostly because our tastes in music or hangout spots changed, and there was nothing else tethering or deepening our friendship, so when those things changed, it ended. On the flipside, most of my closest friends today actually are people who I met at festivals or parties, but it's because I've invested in those relationships and expanded them to exist beyond the circumstances that we met under. I can lose interest in going to electronic music festivals and not worry about losing the friends that I camp with there, because I make sure to pull those friends into my normal day to day life, by going hiking, cooking dinner, getting coffee, etc. I also try to do new things with friends, so we have a shared new experience together.

      Another example of adaptability is which social contexts you are in when you spend time together, as in, hanging out in group settings only, or getting together only when a mutual friend is there, vs. spending time 1:1. When I invite a friend of a friend to hang out with me without the original mutual friend, that's taking a step into a relationship that exists independently. I keep this in mind whenever one of my friends starts dating someone that I really get along with and make it a point to form my own friendship with that person, so if the relationship doesn't last, I have the opportunity to keep that person in my life.


      Maybe some of these things seem like common sense or human nature, but it certainly took me a while to recognize some of them. Whenever I meet someone I really get along with, I make sure to keep these principles in mind. And when I feel myself drifting away from a good friend, I think about which of the three elements could use some attention.

      What are your thoughts on cultivating quality friendships? Does it come naturally to you? Anything you struggle with in particular?

      37 votes
    8. Offbeat Fridays – The thread where offbeat headlines become front page news

      Tildes is a very serious site, where we discuss very serious matters like right to repair, shrinkflation and filesharing. Tags culled from the highest voted topics from the last seven days, if...

      Tildes is a very serious site, where we discuss very serious matters like right to repair, shrinkflation and filesharing. Tags culled from the highest voted topics from the last seven days, if anyone was unsure.

      But one of my favourite tags happens to be offbeat! Taking its original inspiration from Sir Nils Olav III, this thread is looking for any far-fetched offbeat stories lurking in the newspapers. It may not deserve its own post, but it deserves a wider audience!

      6 votes
    9. What programming/technical projects have you been working on?

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's...

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's interesting about it? Are you having trouble with anything?

      12 votes
    10. E-reader purchasing advice

      So for various reasons I can't use paper books very well. I've been reading almost exclusively on epaper for... 15 years or so now? My current reader is a Kobo Aura One which has done very well...

      So for various reasons I can't use paper books very well. I've been reading almost exclusively on epaper for... 15 years or so now?

      My current reader is a Kobo Aura One which has done very well but is starting to get a bit tired - the screen is a bit scratched up and the battery life is measured in days rather than weeks (at around 1hr/day reading with the frontlight on low). Plus the usb socket has done that annoying thing where the cable needs to be at the exact right angle in order to charge.

      So I'm in the market for a new one. I'd like it to be >7 inches, 300ppi (same spec as the Aura One or better). Overdrive support is nice but not essential. EPub support is a must, as is orange/red frontlighting. Linux slightly preferred over Android. Battery life in weeks. Waterproof doesn't matter. Cloud sync, bluetooth, audiobook support, apps (other than a decent reader), note-taking - I don't care about. It's for reading books, nothing else. Budget is not a huge issue but I don't want to spend more than I have to.

      I have had zero time for the last few weeks to look into what the market is doing now and it's been many since I paid much attention to the world of ereaders, so anyone who is more up to date than me who can offer some suggestions would be much appreciated.

      27 votes