In fairness if you really needed to you could rent this kind of compute via a service like vast.ai, it'd probably still be cheaper than paying a ransom.
Useless is a strong term. I do a fair amount of research on a single 4090. Lots of problems can fit in <32 GB of VRAM. Even my 3060 is good enough to run small scale tests locally.
I'm in CV, and even with enterprise grade hardware, most folks I know are limited to 48GB (A40 and L40S, substantially cheaper and more accessible than A100/H100/H200). My advisor would always say that you should really try to set up a problem where you can iterate in a few days worth of time on a single GPU, and lots of problems are still approachable that way. Of course you're not going to make the next SOTA VLM on a 5090, but not every problem is that big.
He's apparently said he was born in 1988. In another thread others mentioned that would make him 21 when he started his PhD, which checks out.
You can do this on Linux using gphoto2, ffmpeg, and v4l2loopback. You probably won't get full resolution but the quality will still be good enough for video conferencing. See here for a guide.
KStars
I'll add that KStars has a really powerful astrophotography suite called Ekos. It has lots of helpful automation features to make imaging relatively simple to setup.
IMO the bigger problem with FreeCAD is the topological naming problem. It's very easy to get frustrated because your model broke due to a change you made in an earlier feature.
The UI isn't amazing though, and that unfortunately happens quite a bit with open source software. Hopefully it'll go the way of Blender and KiCAD with an eventual major release that overhauls the UI.
Ondel has a nicer user interface, but I personally use and recommend realthunder's LinkStable branch of FreeCAD. Mainline FreeCAD (and by extension, Ondsel) suffer from the topological naming problem, which can be especially jarring to users coming from proprietary CAD software. realthunder put a lot of work into a solution that handles the problem pretty well, so I'm using his fork until toponaming gets mainlined.
Personally, I'd prefer that projects use forums for community discussions rather than realtime chat platforms like Discord or Matrix. I think the bigger problem of projects using Discord is not that it's closed source, but rather that it makes it difficult to search (since no indexing by search engines) and the format deprioritizes having discussion on a topic over a long period of time. Since Matrix is also intended for chat, it has these same issues (though at least you can preview a room without making an account).
As of right now VLC also doesn't properly support Wayland, but MPV does. It's a great piece of software!
Agree on the sentiment about VLC though, having an open source project demonstrate what is possible and stand the test of time definitely paves the way for future work and improvements.
I'm a researcher in ML and that's not the definition that I've heard. Normally the way I've seen AI defined is any computational method with the ability to complete tasks that are thought to require intelligence.
This definition admittedly sucks. It's very vague, and it comes with the problem that the bar for requiring intelligence shifts every time the field solves something new. We sort of go "well, given these relatively simple methods could solve it, I guess it couldn't have really required intelligence."
The definition you listed is generally more in line with AGI, which is what people likely think of when they hear the term AI.
I agree with your thoughts. I hate what Bambu has done to the industry in terms of starting a patents arms race and encouraging other companies to reject open source, but I do love how they've pushed innovation and have made 3D printing easier for people just looking for a tool.
I hope the DIY printers like Voron, Ratrig, VzBot, and E3NG can continue the spirit of the RepRap movement.