squaresinger

A squadron of military planes is a bit hard to come by as a private person.

But I wonder if people would also be that fascinated after 25+ years if I flew some DJI drones at 1-2km height in the night with bright LEDs on their bottom and dropped some pyrotechnics from them.

This has been confirmed independently multiple times as two groups of A-10 military aircraft dropping flares with parachutes for training purposes.

And still you see videos titled "Still no answers 26 years after the lights appeared over the valley". Well, no answer that these guys want to hear.

And what it looked like is quite easy to check, since there are tons of photographs of that incident.

There are two issues with that:

• The GDPR notice on feddit.de is not GDPR compliant, and the link isn't even visible on mobile.
• If you request deletion, they can't guarantee that the data is deleted on federated servers. They can send deletion messages, but federation is constantly not working correctly, other instances can decide themselves whether they do delete stuff, and if an instance is unreachable for a while, the deletion message will be dropped.

Lemmy, or even ActivityPub are designed to be non-GDPR compliant. (Probably not on purpose, but the way it works makes it basically impossible to be GDPR compliant.)

That already exists. The person who created a post or comment can delete it. But it only works sometimes, since federation is constantly not working correctly.

That's true, but neither the article nor the discussion are about ActivityPub.

Both are specifically about Lemmy, and Lemmy does have private messages.

I said: Code changes are easy, all the other things in regards to supporting playing on Linux (anticheat, support requests, testing, ...) is hard.

You said: But code changes are easy because steam has libraries to unify distribution.

Do you see the problem here?

What are you going to tell me next? That code changes are easy?

And the content of private messages.

How about private messages which are also unencrypted?

It's actually not wrong if you look at it in another way.

• Big tech will abuse your data, but it will do within legal constraints, and there is actuall (though weak) accountability of these companies due to the legal system.
• On federated services like Lemmy, instances are hosted by anonymous individuals. Most social media laws don't apply to them, and their legal accountability is basically zero.
• Lemmy, for example, does not comply with GDPR. There is no legal notice, no privacy contact person, no banner asking whether you are ok with the fact that your data is sent to unknown servers in random nations, no nothing. Private messages aren't even encrypted, so any admin can read them without issues.
• There is no way to actually delete your data, as the GDPR requires. Deleted posts are only marked as deleted and you can see their plain text content by just pressing the "reply" button in any of the apps. There isn't any kind of guarantee, that your post will be deleted on other instances. If federation has problems, the post will remain on other instances and is now permanently undeletable by the user.
• There are no moderation standards. Some instances will delete nazi content, some basically require nazi content. And some instance admin might even edit your posts to say something completely different. It's all possible and in the hands of random people on the internet.
• Hobbyist-run services are much worse when it comes to availability and reliability. If something happens while the admin is on holiday, nothing will get fixed. If the admin runs out of money, doesn't care anymore or even dies, the instance with all it's content and users is just gone.

So there are very real risks attached to a hobbyist-run service with no legal accountability and no transparency at all.

We all know the downsides of Big Tech though, so it's everyone's personal choice to figure out which disadvantages hurt them personally more.

Emails also go to other's servers.

But you could just host an IRC server.

But as soon as you interact with literally anyone (or anyone interacts with you) your data is still replicated on other servers.

Yeah, that's more due to need than due to technical difficulty.

Even in 2024 it's still common that you have to print out documents to sign them or tickets for some event or something like that. All these (quite relevant) use cases just don't work if you don't have a 2D printer.

As much as I like my 3D printer, and as much as I recommend everyone to have one, is not nearly as necessary.

In regards to how difficult they are to make, consider the price.

2D printers have an advantage due to their much higher sales numbers (economy of scale) and they are subsidized by the manufacturer selling expensive ink. And still, a half-decent inkjet costs €100 or more, and a color laser easily costs €300 or more.

3D printers usually have much lower sales numbers and people usually buy 3rd party filament, so the printer needs to be expensive enough to generate money for the manufacturer. And still you can get a decent Ender 3 for as low as €150.

What's different? Basically the whole thing.

A 3D printer (talking here about FDM because SLA really shares nothing at all with a 2D printer) is basically a tiny hot glue gun being moved on three axies by stepper motors. Of course, the temperature and extrusion controls are much more accurate than a hot glue gun, but that's the basic principle. You got a single "printing point" that gets moved around and it only extrudes filament from that single point.

An inkjet printer has one stepper motor that moves the paper and another that moves the print head from left to right. So there too are axies moved on stepper motors. A very simple trait also shared by e.g. CD and disk drives, slot machines, camera lenses and many other things. All these things are as close to a 2D printer as a 3D printer.

The real magic of an inkjet printer is the print head. A print head doesn't have a single nozzle but an array of many nozzles. This way, a printer cannot only print one dot at a time, but instead a few lines at a time. These nozzles are much tinier that the nozzles on a 3D printer, and they also are much more complicated to operate.

A 3D printer just uses a stepper motor to push filament into the printhead, where it melts and is then pushed out of a hole.

On an inkjet printer, you need to either rapidly boil the ink, so that a single vapor bubble appears that pushes just a tiny drop of ink on the paper, or you have a tiny piezoelectric transducer that creats a vibration that then pushes out ink.

This is orders of magnitude more difficult than a 3D printer, and much tinier. You won't be DIYing a working 2D printer from scratch, while that isn't all that hard for a 3D printer. With access to a decent toolshop, you can make all relevant parts of a 3D printer. The same is not true for 2D printers.

To rephrase your question: Why is it that so many people build DIY desktop PCs, but nobody is making a DIY flagship smartphone? What's the difference?

Basically everything.