I'm apologizing in advance for this train wreck

Like- THEY DID IT

One fantastic thing about the Death Note is (I don't recall this explanation in the anime, but it was explicitly explained in the manga) you can't use it to peripherally kill people. Only the person you name and picture dies. Otherwise Light could try to kill targets whose names he doesn't know by finding the names of those close to them and writing in murder-suicides or whatever. So if you kill five billionaires in a yacht fire that otherwise wouldn't have happened, the serving staff etc. will survive their fated lifespan. (The remaining lifespan thing has always been pretty awkward re: causality; we know that using the Death Note to kill people does change the lifespan of others via its influence on the world so one would imagine that it should shorten other lifespans and not being able to shorten them to a near-immediate death seems arbitrary, but let's not poke at that fabric lest we start wearing pot holes into it.)

In the particular case of "A, B and C die in a fiery yacht explosion", if the yacht explosion would kill other people, they'd just die of heart attacks instead. If one of them was piloting the yacht and their death would cause the yacht to kill somebody else, they'll die of a heart attack at the soonest point after the scheduled time of death such that their death won't be the proximate cause of somebody else's death. (Can deaths caused by the Death Note cause collateral damage short of death? Maybe, but I suspect invoking them in the death condition would either result in those conditions being ignored, or the victim dying of a heart attack instead: it's a Death Note, not a Fractured Arm Note.)

(Pulling back from the billionaire example: a surgeon won't die in the middle of surgery if this would kill the patient, but it's permitted that somebody might die sooner as the result of the surgeon no longer being available to operate on them. Curiously, Shinigami will see the indirect victim's lifespan as it would have been had the surgeon not died.)

I feel that the rules on disease are illustrative of the limits of the Death Note:

"X will die of COVID in 10 days" will result in them contracting COVID and dying in 10 days.

"X will die of lung cancer in 10 days" will result in them dying of a heart attack in 10 days, unless they already have a case of lung cancer that could reasonably kill them.

"X will die of lung cancer" (with no time specified) will cause them to get a case of aggressive lung cancer, which will kill them as soon as it realistically can, even if that time is outside of the typical 23 day window the Death Note operates in.

There are also rules indicating that the conditions of death must be physically possible, and reasonably carried out by that human. This prevents deaths like "X explodes into a swarm of kittens" and "X dies while reentering Earth's atmosphere" (unless e.g. X is an astronaut).

While not explicitly stated, I suspect:

If you indicate that somebody is killed by a falling meteor, the Death Note will strive to get them into a position where a meteor of sufficient size was going to fall anyway. It's not going to violate conservation of mass to summon one into existence, nor conservation of energy to shove one towards Earth. If there's no viable meteor candidate reachable under normal circumstances: heart attack.

You might be able to specify another person as an agent of an accidental death, but you can't use the Death Note to force somebody to become a murderer unless they were already inclined to murder the victim: the Death Note will provide opportunity, but not motive or inclination. (This is heavily inferred from a rule stating that "all humans are thought to posses the potential to commit suicide".)

Expanding on the above, the fact that the Death Note can manipulate plausible accidents to happen indicates that it must be capable of influencing the behaviour of people other than the one listed in the Death Note, but I suspect that influence is minimal. Influence over the named victim is greater, but still has limits: nobody will hijack a plane just to make it to their appointed time and place of death.

On the feasibility of an "AI server farm explosion", you'd need a reasonable way for the server farm to explode (gas leak?), a means for the victim to be inside, and a high likelihood that nobody else is present at the time.

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and The Public still don't even realise that Quincey Morris just wandered his way into the plot of Dracula because no one ever includes him in the adaptations and no one's actually read the book

but it's an entirely new level of tragic when somebody you've actually spoken to gets turned into a bot account. it's like peeking at a zombie apocalypse through the window and realizing one of the shambling corpses was your friend.

and then the zombie catches sight of you, lurches up to your window, and shouts through the glass that they accidentally reported your account to tumblr and you'll be deactivated unless you click this link.

if you get something like this ↑ they're gonna follow up by instructing you to contact tumblr support on discord and give you contact info; or they're gonna link a website that looks sort of like tumblr support and say you have to email them; or any variety of "you must now contact tumblr, here is how you contact tumblr."

whatever they send you, it Does Not lead to tumblr. it leads to the master zombie that bit them and inducted them into the ranks of the undead, and will bite you the second they have your email and password. i might be confusing zombies and vampires. anyway,

it's easier to fall for these messages because the blog doesn't LOOK like a bot blog, because it ISN'T a bot blog. it's a normal person's blog that got accessed by a bot, meaning the blog's content CLEARLY looks like a real active user when you click on it. and yes—it might even be a blog you already know. sometimes bots like this go down a blog's DMs or reblogs and message people they've previously interacted with.

there’s sixteen Colorado counties that their most searched was “wolf furry”, plus thirty-odd counties (not counting either Arapahoe or any of the ones marked here as “Insufficient Data”) which may well have had plenty of searches for “wolf furry”, just fewer than for whatever they’re labeled here

and “skunk furry” searches in Arapahoe County outnumbered “wolf furry” searches in the entire state of Colorado

henchperson: uh, boss? You know how a couple weeks ago, me and the girls put up that barrier against invaders, extra thick, just like you asked?

boss: yes…

henchperson: one thing, though, boss…

boss: out with it.

henchperson: weeeel, the good news is no invaders.

boss: and the bad news?

henchperson: weeeeeel, we made it out of wet tissue again, boss. so we’re going to have to peel it off and put up a new one before it gets all nasty, see?