They're around, but probably some shared network instead of what they are today. Car traffic is vanishingly low, since the only people who have a car are enthusiasts, and most would just take shuttle, or transport.
At the very least, I can't see the Federation removing them completely, if only for the historical/cultural value that they have. Ancient humans in the 21st century used to drive and walk on them, you know.
The Federation is shown to be able to fully control the weather of planets; I expect that Earth would be one of those planets.
It is. Picard was suspicious of the Q being involved in the death of Amanda's parents because the weather control network inexplicably failed, a tornado that materialised, destroyed them/their house, and vanished before causing any other damage.
I've found that you just have to treat them like a mechanical typewriter, and type like you're hammering in nails for them to work some semblance of properly.
Vision was also a robot with human-type consciousness and intelligence. We can, at least, nudge that into "funny-looking human" through suspension of disbelief.
Markdown is also an open format. You aren't forced to use Obsidian for everything, and there are already numerous programs that are capable of displaying the formatted end-file, because it's standard markdown.
It's not some proprietary thing that only Obsidian uses.
Linux also always allowed you to install applications directly. Everyone just uses package management software at this point because it's all well managed and easier to keep things updated, but you can still install things manually with make.
You only need make if you're compiling. Installating precompiled software is somewhat easier, since it's basically just copying to /bin. If you know where that is, then it's simple.
A lot of Bioluminiscence, but Infrared light as almost in any living be, which we can't see without special devices.
It's different from the blackbody radiation that body heat produces.
Structural weakness not only in the lower back, but also in the knees. The human being still has many reminists of an quadruped, as one of the younger species. He still has a way to be optimized as bipedo. Lower back and knees are still not optimized for this, apart of some other static and organic problems. We are still in phase beta.
Evolution doesn't follow the rules of intelligent design anyhow. If they did, we would all be crabs.
Probably downloaded it from ChatGPT, that's why it's in the downloads folder.