Well here's some nightmare fuel – a 60's American rocket warhead full of sarin cluster bombs to cover a square kilometer with nerve gas.

Source https://en.wikipedia.org/wiki/MGR-1_Honest_John

MGR-1 Honest John - Wikipedia

Literally a documentary
I will again repeat that under no circumstances you travel back in time to before the fall of the Soviet Union. We are the one in a billion timeline that doesn't go sideways don't fuck this up for us. I don't care how much you want to keep Reagan a movie star some mistakes are forever.
@SwiftOnSecurity this is the timeline that didn’t go sideways?!?
@Artimage @SwiftOnSecurity I mean, while things could certainly be a whole lot better now I didn't honestly expect to make it this far without either dying in a nuclear fireball or due to the fallout from one, so, eh.
@Artimage @SwiftOnSecurity if we don't get Trump the GOP keeps GOPPING

@Artimage @SwiftOnSecurity yup. As fucking terrible as Reagan was, there’s this one thing that went right for everyone & he was a meaningful element.

Sucks.

@Artimage @SwiftOnSecurity my favorite quote from Jon Lovett is “there’s no such thing as ‘we’re fucked’. Things can get better or things can get worse.” And things can *always* get worse.
@SwiftOnSecurity Ronald Reagan was not a movie star. He was a middling B-grade actor who wound up in the role of his life playing President of the United States.
@SwiftOnSecurity
I saw you edit just now, you happy?
@SwiftOnSecurity Look I accidentally left my aviators in 1986 and they just frame my face too well. Five minutes, in and out, if I even SEE a butterfly I'll come right back, scouts honor.

@SwiftOnSecurity
Not sure this timeline is as you say, though?

Here's a 2019 presentation from last year's best seller french author (at one of France's best grad schools & with very decent English subtitles)

But maybe that was your point

https://youtu.be/Vjkq8V5rVy0

Jancovici : CO2 ou PIB, il faut choisir - Sciences Po - 29/08/2019 - [EN subtitles available]

YouTube
@SwiftOnSecurity The Time Variance Authority insists that 616 is the one true timeline.

@SwiftOnSecurity
I often thought of 2016 as one of those bits where multiple time travelers keep going back to prevent a disaster, but each trip just makes it worse.

I found out what the disaster was in 2020.

@SwiftOnSecurity what if THAT is the only right solution
@SwiftOnSecurity do you really think our timeline hasn’t go sideways?
@SwiftOnSecurity "Gibson himself has said that, in creating a future that didn’t end in a global nuclear disaster, he thought he was creating an optimistic future. In the 1980s, reading Neuromancer’s grim future somehow alleviated, for me at least, the fear that the unknown future would be unsurvivable." https://www.tor.com/2022/02/10/the-peculiar-dystopian-optimism-of-william-gibsons-neuromancer/
William Gibson’s Neuromancer: Does the Edge Still Bleed?

My favorite part of reading a work of science fiction for the first time, like visiting a new country, is that hit of strangeness, of being someplace where I don’t know the rules, where even the fa…

Tor.com

@SwiftOnSecurity Any future TimeCops who want to make sure that history turns out correctly, take note: protect Raisa Gorbechev at all costs.

(no, seriously, she was a major force in convincing her husband that Soviet Communism had no future, ensuring a peaceful breakup that, at worst, would have resulted in an early-EU style CIS)

@SwiftOnSecurity The multi-verse is basically a Choose Your Own Adventure book where most choices result in a horrifying extinction.
@SwiftOnSecurity Fortunately time machines can only be used from the time they’re created to the time their destroyed. The only ones possible that I’m aware of would be so massive they’d destroy the whole solar system (Tipler Cylinder for example!) You can sleep at night :)
@SwiftOnSecurity What if I go back and stop the Rosenbergs from selling nuclear tech to the Russians? US gets a clear hand to fight Korea, reinstate KMT in China, get an American Century 4 decades early. Which isn't everyone else's favorite, but probably fewer genocides.
@mdhughes @SwiftOnSecurity You don't want to do that. You get blamed for it instead of them. Leaving that bit of history as-was causes far less harm than happened before.

@mdhughes @SwiftOnSecurity > American century
> Fewer genocides

Well, considering the fact that America irl was indirectly involved in most of them, I'd say this is really optimistic

@SwiftOnSecurity The number of times we came within a single event upset or a bitflip of ending up as radioactive dust is frankly terrifying, by which I mean, it's more than zero.
@SwiftOnSecurity no, the nuclear holocaust is bound to be better