Make it a good one.

  • ALQ@lemmy.world
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    1 month ago

    Wait until I’m about to die, then go back to when the first land-dwelling animals first started coming ashore. I’d bring a bunch of cockroaches with me and then I’d die there. Either the roaches or my decaying corpse will hopefully cause enough change to the timeline that humanity never develops in the first place.

    I think that’s the most I could screw over the (human) world.

  • ThePowerOfGeek@lemmy.world
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    1 month ago

    Go back in time and do something to prevent Vasily Aleksandrovich Arkhipov from becoming the Executive Officer on the B-59 Soviet nuclear sub in October 1962. He’s the guy who talked the Captain and the Political Officer out of launching the nukes when they thought they were being attacked by the US Navy during the Cuban Missile Crisis. His persuasiveness is generally considered to have avoided WWIII from starting then.

  • WideEyedStupid@lemmy.world
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    1 month ago

    Hmm I don’t know. Probably go back to Germany 1940 and give them all the information needed to develop nuclear weapons first. You just know that Hitler would’ve pushed the red button a hundred times over if he had the chance.

    • omxxi@feddit.org
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      1 month ago

      The TV serie “The Man in the High Castle” interestingly explores how would be the world if the nazis would have won the war.

  • MudMan@fedia.io
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    1 month ago

    You’re going to pretend we’re not on that timeline right now? I see your play, time traveller.

  • slazer2au@lemmy.world
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    1 month ago

    Go back to 2011ish and unleash WanaCry on a world that is not ready for for a global crypto locker.

  • CarbonatedPastaSauce@lemmy.world
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    1 month ago

    I read about a study that said Homo sapiens may have been down to as few as 40 breeding pairs at one point.

    I’ve got way more ammo than that in my closet.

    • chaosCruiser 🚫@futurology.today
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      1 month ago

      By eradicating one species, you’re probably going to save the entire planet. I guess in 500 million years the descendants of modern crows could become the new dominant species and they’ll end up nuking the planet sooner or later. You win some, you loose some.

  • derekabutton@lemmy.world
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    1 month ago

    I’m heading far into the future - say 1000 years or perhaps 100 if communication would be an issue. I’m going to grab all sorts of portable devices and tools to take back with me, and I will maintain the remainder of my life without sharing my goodies. The world is screwed because they get no fruits of my intense labor, but that is fine since I hate them anyway. For that afternoon of work, I get to live a great life while everyone else must suffer in modernity.

    • isgleas@lemmy.ml
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      1 month ago

      At current pace, I wonder what you could do with a spear and a club from the future

  • Kissaki@feddit.org
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    1 month ago

    The biggest killer for indigenous people is said to be infections - bacteria and viruses. Collect some in this time - maybe a cold - and go back and presence will be enough.

    It depends on how you interpret “screw over the world”, but I guess “you hate everyone” implies humans. If you go back to the first humans from Africa, before spreading out, that may have the biggest impact - significant delay or suppression in development and spread, or eradication.

    • sexual_tomato@lemmy.dbzer0.com
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      1 month ago

      Go back 1000 years before Europe makes contact with the Americas. Infect everyone and let their populations get wiped out, but give time to recover so first contact with Europe doesn’t go as poorly. Also give them horses much earlier.