Don’t know about Signal but the way PFS usually works is there is something like a Diffie-Hellman (DH) key exchange. Each person generates a random (private) number, remembers it, crunches it mathematically into a public number, and sends the public number to the other person. Each then combines their private number with the public number that they got from the other person, and this (because of how DH works) cleverly gives both people the same secret number they use for the encryption, but the secret can’t be reconstructed without knowing at least one of the private numbers. Finally, the PFS part is simply that each person permanently deletes both the shared secret and the private number they generated for that exchange (they will create new ones next time they want to communicate). That means there is no way to reconstruct the secret and re-decrypt the message.

Of course, authentication also has to be added to all this.

For more info, probably easiest to look up Diffie-Hellman key exchange online.

Psychologists are therapists. Just specifically trained.

Nah, there are psychologists who measure axon potentials in rats and stuff like that. Therapy is an area in clinical psychology, which is a subfield of psychology, but you can get a psychology degree without ever going near that subfield. You get to be Dr. Rat Maze or whatever. But who knows, you might end up training the next Algernon who then takes over the world.

Source: had a grad student housemate doing that type of research. He said when people heard he was studying psychology, they thought he was getting trained to be a marriage counselor. Nope, nothing of the sort.

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I don’t care much about any of these technical intricacies regarding word matching. I want Lemmy to be a human institution, which means no bots editing people’s posts beyond possible spam control. If there is a serious trolling problem featuring specific keywords in a community, I’m fine with a moderator manually kicking off some automatic action to remove a bunch of posts at the same time. But we don’t need robot nannies surveilling and messing with all of our posts.

I griped about the censor bot here: https://lemmy.ml/post/3449468

Here’s another example, not from here. Before celullar phones, before television, before broadcast radio and even before the telephone, there was the telegraph. Communications with it were done in Morse code, by operators tapping away on telegraph keys. Telegraph keys were typically made of brass, and people who used them all day were called “brass pounders”. That profession is long since obsolete, but there are still ham radio enthusiasts who use Morse code as a hobby, and there is a group of them called the BPL, for “Brass Pounder’s League”. There are also people who simply try to honor the history of the venerable telegraph even though they recognize it as being a relic from the bygone era.

Anyway, where am I going. Someone started a pretty good site about telegraphy and telegraph keys, called “brasspounder.net” which was a really cool name. Unfortunately Google’s algorithm seems to have classified that name as that of a porn site, because it saw the word you get if you ignore the “br” at the beginning, leaving “ass pounder”. Whoops. The site ended up changing its name to telegraphy.net, which is fine but less evocative in my opinion. Oh well.

The above is an example of the so-called Scunthorpe problem. Let’s see if Lemmy has that too.

This is the support community and I’m requesting that the software be fixed.

I’m a chess fan. Men-only events were abolished in the 1980s. There are now women’s events (no men allowed) and open events (everyone allowed). In practice open events are 90% male, and the male players, especially at the lower levels, tend to fit the smelly and socially inept stereotype. Playing in them can be unpleasant for women, and women’s events exist basically to provide playing venues where women can enjoy competitive chess while staying the hell away from us clueless males. As a clueless male myself, I can get behind that, no problem. I understand and I’m fine with it. How do cis women feel about playing alongside trans women? Idk, I’m cis male and I don’t feel entitled to spout off about that. But I think they are the ones I’d want to listen to the most.

The top levels from what I can tell aren’t as bad as the lower levels, since the effort it takes to reach that level of chess tends to weed out the clueless and lazy. There is still bad stuff though, e.g. the incidents with GM Alejandro Ramirez.

You might like the book Chess Bi tch (that is the title, damn censor bot),by WGM Jennifer Shahade reviewed here , about her experiences in both women’s and open chess events coming up through the ranks.

As for FIDE, there currently aren’t really alternatives at the top levels. FIDE on the other hand is not much of a factor in lower and mid level chess. Those events tend to be regulated by national and ad hoc federations, etc.

Large ones can be a pain and I’ve generally converted those to other formats even it’s at some cost in disk space.

How well do you think the federation model is working, in terms of cultural dynamics, more defederations than I would have expected to see, etc.? I’m not counting technical glitches that I assume will get sorted out over time.

You might like the Sofirn SP36 which was on sale last month. It looks like the sale ended and it’s a few bucks more now, but still pretty good:

https://www.sofirnlight.com/products/sofirn-sp36-blf-anduril-2-0-rechargeable-flashlight-5650-lumens-powerbank-output

If you want something insane, you could try web search for Ultimate Stealth Light on CPF. It is a Maglight 3D body modified to house a hand built NiMH pack and a 100 watt slide projector bulb. It’s “stealth” because it’s designed to look like an ordinary Maglight until you turn it on.

Visible light emitted is around 3K lumens but since it is incandescent, there is also a tremendous amount of infrared emitted, so there are photos on CPF of people literally frying eggs on the lens. Turning it on produces a much greater sensation of brightness than a LED light with the same lumens would produce. I’d probably be willing to part with mine, but would have to check that the battery pack hasn’t crapped out, as I haven’t used it in years.

Thanks. IIRC the Zebralight H50 is a cm or so shorter than any of those. I’ll try to post a pic sometime. How do you like the Manker E02? I got one recently and find I wish it were smaller and that the UI was either greatly simplified, or replaced by Anduril.

I only see a runtime graph, with no flashlight pictures. Did I miss something?

Aha, thanks, not sure how I managed to miss it before. Hmm.

If it is only down 30-40% then just keep using it. Mine is down more than that and I can afford a new one but figure I am ok without it.

I get Fennec updates through F-droid all the time.

There’s tons of memes and stuff, but I was never into that, so meh. My thing was specialized nerd groups and they are mostly not here yet. With time, maybe they will come.

Ada would like a word with you ;)

It would be cool if there was a way to move a post from one community to another, so the poster gets notified and maybe the old link redirects. Some BBS systems support this.