Rules:

  • The messages can go as far back as the beginning of the 7 day period (the moment you found out about your assassin is after you)
  • You can only send the messages if you have cell signal (maybe don’t hide in the woods, you assassin might be there, and you don’t get a do-over 🙃)
  • Your phone is immune to damage and malware (although spyware and keyloggers can still be on there, but they can’t affect the system, just on “read only” mode). Auto-updates are now disabled by default
  • If assassin got your phone, they could send false messages to trick your past self. (Don’t lose your phone!)
  • At the end of 7 days, the Assassin will just drop dead due to time travel limitations, time travelers cannot survive longer than 7 days in the past (yes, the assassin is a time traveler 😉)

[P.S: El Psy Congroo]

  • megane-kun@lemm.ee
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    6 days ago

    I’ll try to send text to the very beginning of the seven-day period, sending each message on two-hour intervals sent to the point in time one second after the last message.

    Let’s assume that the seven-day period starts on 2025-05-12 08:00:00.

    • The first message will be sent two hours after the seven day period starts, and every two hours thereafter. This first message will be sent on 2025-05-12 10:00:00 and will include:

      1. the timespace-stamp of when and where the message is sent. the time part of this would be written in way that only I can encode and decipher.
      2. all the rules as I understand it so far
      3. what I’ve done from the the start of the seven-day period.
      4. something only I know that will convince myself that I indeed sent the message from the future
    • The messages will be sent to the time one second after the previous message was sent. Hence, continuing the example, the next message would be sent on 2025-05-12 12:00:00 to 2025-05-12 08:00:02, and so on.

    • The messages will follow the same format as the first one:

      1. timespace-stamp (when and where I sent the message from), the time portion written in the same code as the first one.
      2. any updates to my knowledge of the rules
      3. where I’ve been and what I did since the last message
      4. something only I know, and will reassure myself that the message is indeed from me
    • If for some reason I am unable to send any messages (for example, I have been asleep, or out of network coverage area) when I should (two hours have passed since the last message), I will send a message immediately when I’m able. This message will be sent to the time one second after the last sent message. So continuing the example, if the last message was sent on 2025-05-12 22:00:00, to 2025-05-12 08:00:07, and I’m asleep until 2025-05-13 09:00:00, I will immediately send a message to 2025-05-12 08:00:08.

    With this, assuming I survive for seven days (exactly) and stay awake the entire time, I will receive the last message before 2025-05-12 08:01:24. The timestamps of the last message will also give me a good indication if I survived the seven days, or how long I survived. If I continue receiving messages past that, maybe my future self messed up, or there’s something more going on, or my future self just decided it’s a good idea to just continue. Nevertheless, I have advance notice of what happens to me.

    Of course I will try not to lose my phone. With advance notice, I will try to stay as safe as possible without deviating much from the timeline. Also, I will try to figure out what’s going on, but only up to the point that I can keep myself safe.

  • dwemthy@lemmy.world
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    7 days ago

    Every hour send a message back to the start of the 7 day period + 1 second for each elapsed hour “still alive at <current time>” At the first one hour mark send a message to three minutes after the start of the period. 168 hours in a week, texts with survival status will be done a bit before the three minute mark of constant messages. This message describes the situation. Now I have insight into when the assassin will get me, to an hour. Don’t change my behavior until the hour span leading up to the last still alive message, go nuts traveling randomly during that time until the number of still alive text messages changes After surviving for a week send a final message back in time to the very start “your phone is trying to kill you”

  • Arkouda@lemmy.ca
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    8 days ago

    Step one: I clone my phone allowing two phones to contact my past self.

    Step two: “Lose” one phone, after turning on find my friend on the lost phone.

    Step three: Send past self false information while keeping constant tab on the assassin who believes they have an edge.

    Step four: Hit the assassin before they hit me.

  • crank0271@lemmy.world
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    8 days ago

    I’m leaving my phone somewhere very far away from my actual location. Check and mate, assassin.

  • untakenusername@sh.itjust.works
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    8 days ago

    Id get the the hashes of the next few hundred blocks of Bitcoin and send back in time, my past self could use that to pre-mine tons of Bitcoin, with each block reward being ~3 BTC and the price arround 90k each, I could sell all that for millions and millions of dollars

    with all that money I’d just hire another assassin or something to kill the first guy. or just invest in a ton of security, body guards and stuff

    edit: actually on second thought I could use almost any financial mechanism to get tons of cash, this is just the first one that came to me

    • SupraMario@lemmy.world
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      8 days ago

      Lotto is picked every wed/sat for Powerball. Bam tons of cash, hire bodyguards or buy stupid expensive panic room.

  • brucethemoose@lemmy.world
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    8 days ago

    What time travel rules? See: https://tvtropes.org/pmwiki/pmwiki.php/Main/TemporalMutability

    Going with “overwriting the timeline,”

    • buy yourself an hour to live on the first day, should be easy enough

    • make fat cash with options trading in minutes

    • buy hella security

    • repeat until the seven days have passed

    I would also rig a “dead man’s switch” on my phone in case the assassin ever does get me, to reset things (by telling my past self of my current situation, so they can avoid it).

  • iAmTheTot@sh.itjust.works
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    8 days ago

    This is similar to the premise of a great game called Shadow of Destiny. Highly recommend it for adventure games fans.

  • Shiggles@sh.itjust.works
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    8 days ago

    If someone with access to time travel is hunting me, the last thing I want is a device known to be associated with me speaking to every cell tower I’m near, time breaking qualities or not. I leave my phone at home and spend only cash as I take a random bus tour of the country.