jazzfes

Really nice, interactive illustrations to provide a really nice introduction to linear algebra.

I'm looking for something I can use on my laptop. The official spotify client works, but it's a bit slow so was wondering if there are alternatives.

I got a spotify account, so would like to be able to use this one with it.

Thanks!

A very emotional read....

"The PAM Duress is a module designed to allow users to generate 'duress' passwords that when used in place of their normal password will execute abritrary scripts.

This functionality could be used to allow someone pressed to give a password under coersion to provide a password that grants access but in the background runs scripts to clean up sensitive data, close connections to other networks to limit lateral movement, and/or to send off a notifcation or alert (potentially one with detailed information like location, visible wifi hotspots, a picture from the camera, a link to a stream from the microphone, etc). You could even spawn a process to remove the pam_duress module so the threat actor won't be able to see if the duress module was available.

This is transparent to the person coersing the password from the user as the duress password will grant authentication and drop to the user's shell.

Duress scripts can be generated on an individual user basis or generated globally. Users can also re-use global duress passwords to sign their own duress scripts (rare instance where this could actually be useful from a security perspective)."

Found on HN - https://news.ycombinator.com/item?id=28267975

Spotting drowning children, or people in general, is apparently very difficult.

The website shows some examples.

Relevant HN discussion

Interesting article that explores links historians made between empires and plagues (refuting some as it discusses them)

Excerpt:

"One of my four-year-old twins is obsessed with death. She wants to know everything about dying. Again and again, she asks me to tell her about what happens when people die. Initially, I was a little surprised by her fascination with ‘died’ people, as she calls them, but then it became clear that she was thinking a lot about this whenever she was quiet.

‘Will you tell me more about dying. What happens when people die?’ she asks me every night before bed.

‘Their bodies stop working. Their hearts stop working,’ I tell her.

‘Is this what happened with Naanaa?’

Naanaa – my father, their grandfather – died in November last year. The twins met him only once, just before their third birthday when we visited India in 2019, although we tried to speak regularly over FaceTime. We were due to visit again in early 2020, but then the COVID-19 pandemic struck, and slowly he became more ill, more frail; the loneliness and isolation of the lockdown, and the lack of adequate healthcare during these weeks and months, took their toll on him.

Preschool children can make sense of death, but only through their parent’s grief, and this is clearly what is happening here: I’d travelled to India and stayed for a week after my father’s funeral and was very open with my children about my sadness. I want them to understand that their grandfather is dead, and I want them to know him, if only through my memories. I also want to normalise talking about death going hand-in-hand with life, especially as right now, with the world in the midst of an unprecedented pandemic crisis, my children hear my husband and I talking about death so often."

For some days now, I get server timeouts when trying to access Lemmy.ml in Firefox.

Weird thing is that I can ping Lemmy.ml from the CLI.

I've got various add-ons installed, mostly privacy focused. How would I debug this?

Thanks

"The study, by an international collaboration of scientists from 14 countries and including experts from the University of Oxford, set out to test the “invariant rate of ageing” hypothesis, which says that a species has a relatively fixed rate of ageing from adulthood.

“Our findings support the theory that, rather than slowing down death, more people are living much longer due to a reduction in mortality at younger ages,” said José Manuel Aburto from Oxford’s Leverhulme Centre for Demographic Science, who analysed age-specific birth and death data spanning centuries and continents."

Really nice discussion how inevitable personal bias in the scientific community makes headlines and how science as a method adjusts knowledge.

At the start there is a nice discussion of how ones own professional background impacts ones imagination when it comes to more speculative areas.

The following quote is from the end of the article:

"The strength of science, as a method for learning about our world, is the ability to self-correct when the data come in. But this self-correction often applies only to the field as a whole: individual scientists, when their speculations are not borne out by the evidence, sometimes fail to change their minds.

Hoyle remained staunchly opposed to the Big Bang theory until his death in 2001. If he’d lived in the age of Twitter, he would have been front-page news: ‘Cambridge professor denies the Big Bang’ would make for clickbait just as appealing as ‘Harvard professor says aliens have visited’. But Hoyle was wrong, ..."