I get your point, those systems make it harder to take down things permanently but they aren't as resilient and perfect as people paint them to be - an it has nothing to do with being pedantic, it is just the reality of things.
My point was: if you still need some central point of contact what's the point in decentralized, you can still get fucked.
For instance the DHT systems you talk about, they're good but still require some centralized points. In a bittorrent network with DHT a new client cannot join without either a tracker or the knowledge of at least one member of the network to exchange peers with. Bitcoin still has some hardcoded DNS seeds in the core client... etc.
There's no real / true decentralization. You're always dependent on something, somewhere in some way. It can be harder to shut it down but there's also a point of failure somewhere. Blockchain is all fun and games until you've to consider resource waste and that you still need DNS and IPs working.
Lenovo brand new is bad, refurbished, well, you just want to have a bad time. This only applies to the new Chinese owned Lenovo, the IBM ones are fine in all possible states.
Trust me, at that point there won't be any explaining possible :D
We've been burned by a lot of distros in the past and right now it all boils down to using Debian and RHEL, everything else mostly failed at some point or will not uphold the stability guarantees. Even containers with Alpine fucked us over once with the musl DNS issues and a few other missing parts...
Yeah, I did that in a system as well and seems to work, for for the others I'll have to wait for the final release, too critical. I'm one of those guys who runs a lot of Debian because the risks of a distro like Ubuntu Server are way over what I can be exposed to.
and can even use as live environment, don’t even need to install (in Windows this is not easy to do)
Not true, Rufus creates bootable and persistent USB flash drives with one checkbox. You can do it manually also.
I was trying to illustrate a point, you may have your distro, your packages and what think you need, but if we're talking about post-apocalyptic you'll probably need other stuff and at that point you have windows computers and windows software installed or installers available pretty much everywhere starting with your next door neighbor and with Linux not so much.
Did you ever see any fresh install of Windows not be able to display at least 800x600 on any GPU? You didn't. It works to the minimum, want more, sure grab an msi and install the drivers.
AppImage suffers from the same problem that Flatpak does, the tool do work offline aren't really good/solid and won't save you for sure. It also requires a bunch of very small details to all align and be correct for things to work out.
Imagine the post-apocalyptic scenario, if you're missing a dependency to get something running, or a driver, or something specific of your architecture that wasn't deployed by the friend alongside the AppImage / Flatpak (ie. GPU driver) you're cooked. Meanwhile on Windows it has basic GPU drivers for the entire OS bakes in, or you can probably fish around for an installer as fix the problem. It is way more likely that you'll find machines with Windows and windows drivers / installer than Linux ones with your very specific hardware configuration.
I am. When "shit hits the fan" you want to be as compatible and and frictionless as possible, because at point having a running computer will be a feat on its own and you probably won't have time/power to deal with software complexities and "ways around issues". You most likely want to boot a machine from whatever parts are available and get some data out of it or maybe in and move on to hunting or farming. No time to be there fixing xyz package with broken dependencies and whatnot. If someone gives you a flash drive with data it follows the same logic, you want to get to something as quickly as possible.
In Linux there's also an over-reliance on web-based solutions that can be self-hosted in your system or a 3rd one but that, once again, just adds extra friction that you don't have with "simple" formats and binaries like pdf, docx and others that at the end of the day are just self contained apps that can be run as is without extra fuzz nor cloud dependencies.
I'm all for Linux, alternative and open-source, but in the situation described you last concern is if you're running proprietary stuff.
Unless someone finds a way to advertise nodes that doesn't depend on the entry point then yes. Consider this example: https://github.com/bitcoin/bitcoin/blob/1b2460bd5824170ab85757e35f81197199cce9d6/src/chainparams.cpp#L112 if someone takes down those domains it is game over for a new node until someone updates the code.