• tibi@lemmy.world
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    9 hours ago

    A full working computer, more powerful than what we used to go to the moon, and using less power than a light bulb.

    It can take many forms, like smartphones, SBCs or older PCs/laptops.

    • BruceTwarzen@lemm.ee
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      6 hours ago

      By that logic, a lighter. Better than smashing two rocks together, that’s how we used to make fire.

  • subignition@fedia.io
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    12 hours ago

    Raspberry Pis and other microcomputers can be had for pretty cheap, and they can be put to a surprising variety of tasks. You need to be a bit of a jack of all trades to fully embrace that DIY element, but I’d bet that showing off a project that you mostly built yourself would be seen as futuristic by most people.

    • tibi@lemmy.world
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      8 hours ago

      The RPI400 is basically a full solution. You just need a display and a mouse, and you have a fully functional desktop computer. Not very powerful, but good enough for basic tasks like writing documents or browsing the web, coding etc.

      • tibi@lemmy.world
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        9 hours ago

        The tape head is basically a small and really sensitive electromagnet. Magnetized tape creates small disturbances in the magnetic signal. Amplify those disturbances and you get sound. Similar to an antenna, but only works in close proximity.

        This also works in reverse. Feed an audio signal through the electromagnet, and the electromagnet will create the disturbances in whatever is next to it. You can do this to record to a tape, or you can do this to pass sound to another tape head, which is how these aux cassettes work.

        You can build one yourself really easily. Just take the tape head from a broken player and solder to an aux cable. Take a cassette, remove the tape, and put the tape head in the middle portion so it comes into contact with the player tape head.

        • mipadaitu@lemmy.world
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          6 hours ago

          Of course it’s Technology Connections. Who else would make a video about a (now) useless piece of 80’s tech with enough content to satisfy any level of curiosity.

  • Sasha@lemmy.blahaj.zone
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    21 hours ago

    Devices less sophisticated than smart phones were once pretty common in sci-fi novel, but they still achieved the same sort of thing, all the world’s knowledge in the palm of your hand.

    You can get smartphones for absurdly cheap these days, and while crappy by modern standards they’re still technological marvels.

  • JubilantJaguar@lemmy.world
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    23 hours ago

    A knife. Futuristic in that it will be handy for hunting and self-defense after the future collapse of civilization that results from our insatiable appetite for consumption - of, among other things, useless gadgets.

    • JustEnoughDucks@feddit.nl
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      11 hours ago

      It’s interesting the difference in what people think a collapsed civilization will look like.

      Some people think we will “return to monke” where wilderness survival skills will be essential and people who have them will be the “main characters.” That would probably be the easier and better future.

      The more likely option will be technofeudalism where rich people have small, brutal armies and control localized power grids, farming operations, and politics with tech as mass migrations happen and wildlife becomes all but extinct outside of human cultivation. Survival skills won’t matter when all land and food scarcity is controlled by a rich few with absolute control. The average survivalist will be wiped out with the first natural disaster or by the feudal lords with drones. Return to nature might only come after 50 years when chip supplies and power grids have dried up and fallen apart, but it would just as likely be mad-max as oil could likely still be used.

      Who knows. Fascism might take over with how it is going now and solve the climate crisis with mass genocide and forcing green energy for all we know.

      • GrammarPolice@lemmy.world
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        10 hours ago

        I see you’ve read Yanis Varoufakis. In all realism though, a fallen society is most likely to be a result of climate change. First it gets too hot for Africans, so their only option is to move northward and eastward to the Middle East. This results in tightened borders and the death of many due to heatstroke and dehydration - I also don’t doubt a slave trade-like and human exploitation era might come about because of this. Increased demand for AC’s in the west will also be a byproduct of this. Melting ice caps will also increase the danger to many of those living in coastal regions - Florida probably sinks faster than we’d predicted.

        All of this I project to happen within the next 50 years where the problems are left for Gen Z and further generations to deal with.

  • ChonkyOwlbear@lemmy.world
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    24 hours ago

    A basic DNA test can tell you your ancestry back thousands of years and identify numerous genetically determined traits. It’s kinda crazy what kinds of things they can tell you about yourself.

    • Boomkop3@reddthat.com
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      15 hours ago

      And if you send in your dna three times, you can find all three if your ancestries! Really tho, there was some funny news on this a while back when identical twins took those tests and got different results

  • Corroded@leminal.space
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    1 day ago

    I feel like that really depends on how you view futuristic.

    I think things with colored e-ink displays, USB C chargeable AA batteries, handheld emulators, 2230 NVMe drives, and USB C power portable displays are really cool but I feel like their availability these days has made them lose a bit of their futuristic luster. They would have blown my mind when I was a kid.

    More niche products like Meshtastic and ESP32 Marauder devices are things I view as futuristic (and can be found for under $100).

    • BluesF@lemmy.world
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      2 hours ago

      I think this is really the best answer. The future is decentralisation, to me. Stuff like meshtastic could take the best parts of the internet and make it local and community owned.

      In fact, I think there are a bunch of things you can get for free which to me represent the future. Linux, Lemmy, FOSS in general. Physical technology is only a small part of the puzzle nowadays.

      • Corroded@leminal.space
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        44 minutes ago

        Yeah I feel like having control over the things you use is definitely a big part. Something that really hampers my enthusiasm for AI is that so much of it is out of my control and generally disconnected from me.

        Having AI that I can modify and run locally on my devices seems a lot more sci-fi than something that can relies so heavily on the Internet and rigid responses.

    • JustEnoughDucks@feddit.nl
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      12 hours ago

      The thing about meshtastic is the walking distance range and limitation to text messages.

      Though I don’t know if it is possible to integrate a LoRAWAN concentrator with a nice collinear J-pole antenna to mount on the top of your house to move to a double digit range where it could be useful as a neighborhood mesh with multiple channels. (With the added benefit of using lorawan devices like pet trackers and things).

      Still Lora smart (but local) home agriculture, water collection, etc… Is a really cool technology for large properties.

  • Num10ck@lemmy.world
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    1 day ago

    you can get several smart outlets around your home for that, have fans and lamps and humidifers etc all remote controlled even with your voice.