this post was submitted on 04 Oct 2025
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I'd give laser pointers to Neanderthals. Even if they did figure out some useful application for them (maybe hunting?) they'd run out of batteries eventually.

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[–] PrimarilyPrimate@lemmy.world 2 points 36 minutes ago

Leaf blower. They are loud and the "breath" coming from them is pretty awesome.

[–] AngryCommieKender@lemmy.world 5 points 1 hour ago (1 children)

Bicycles. If we could have gotten bicycles a few centuries before cars, I don't think modern cities would be so damn car centric.

[–] pmk@lemmy.sdf.org 1 points 18 minutes ago

If I may ask, where are you from? The city I live in is a nightmare for cars, the roads were made for horses and walking, narrow and winding cobblestone streets and the city tries its best to keep cars out of the center.

[–] BigBenis@lemmy.world 1 points 50 minutes ago
[–] deegeese@sopuli.xyz 7 points 2 hours ago (1 children)

A single glass coca-cola bottle

[–] pokkits@lemmy.wtf 3 points 1 hour ago

You must be crazy. ;)

[–] Zirconium@lemmy.world 14 points 3 hours ago (1 children)
[–] AnnaFrankfurter@lemmy.ml 4 points 1 hour ago

Hey this might help us out. If Neanderthals learn how to sit for hrs a day we would get that evolutionary advantage.

[–] Fyrnyx@kbin.melroy.org 1 points 2 hours ago

An LED light bulb.

[–] ShaggySnacks@lemmy.myserv.one 27 points 6 hours ago

That singing fish animatronic. Convinced people it’s a god. Wait for the battery to die and the eventual religious crisis.

[–] slazer2au@lemmy.world 11 points 5 hours ago

A solar panel with a light attached.

[–] BagOfHeavyStones@piefed.social 5 points 4 hours ago (1 children)
[–] Corporal_Punishment@feddit.uk 5 points 3 hours ago (1 children)

Anything mechanical, even someone in 5000bc would be able to figure out how it works.

[–] bluesheep@sh.itjust.works 2 points 32 minutes ago (1 children)

I think the problem would be recreation. Can't really make an effective chain out of wood I assume.

A Nintendo Switch running Animal Crossing. Assume it has some kind of perpetual battery, and they can figure out how to operate it/play the game, and read our modern English.

I'm thinking they figure modern civilisation is about (or back to) fishing and farming... and that animals are intelligent. Like validating TF outta the Egyptian pantheon. You're a human but you have a dog for a neighbor, here's a koala, a gorilla, an eagle... and they all talk and wear clothes.

(Of course, if we wanna blow their minds with a game AND we can assume they can play it, why not just go straight to Cyberpunk?)

[–] Olap@lemmy.world 10 points 6 hours ago

Something with gears. Like a cranked egg whisk. Huge amounts of science went into this, but all of it should be replicable in a few generations of experiment with even bronze working. And it should inspire inventors of the age too

[–] 6stringringer@lemmy.zip 15 points 7 hours ago (2 children)

A snow globe from Niagra Falls, a clothes hanger, A Buttplug, a die cast Model of The General Lee, some Tide pods, an assortment of Weeble Wobble’s, The Complete Jane Fonda Workout (large print, hardback edition), A magnifying glass, A bag of Candy Corn.

[–] tlmcleod@lemmy.ml 29 points 6 hours ago (2 children)

You're just listing all the things within arms reach, aren't you?

[–] 6stringringer@lemmy.zip 1 points 25 minutes ago* (last edited 25 minutes ago)

These items are in my go bag.

[–] HowAbt2day@futurology.today 3 points 4 hours ago

Arms reach because they’ve all just been pulled out of an ass.

[–] ryannathans@aussie.zone 2 points 7 hours ago

Need justifications

[–] nutsack@lemmy.dbzer0.com 2 points 5 hours ago (1 children)

i would give them nuclear weapons

[–] AnnaFrankfurter@lemmy.ml 1 points 1 hour ago* (last edited 1 hour ago)

Yeah finish off human race before it begins

[–] Diddlydee@feddit.uk 2 points 5 hours ago* (last edited 5 hours ago)

One of those pens from bawdy seaside resorts where you press the button on the end and the lady's clothes disappear. Might as well be magic.

[–] DirigibleProtein@aussie.zone 9 points 7 hours ago (1 children)
[–] ShaggySnacks@lemmy.myserv.one 3 points 6 hours ago (1 children)

And for generations people will ask β€œMagnets, how do they fucking work?”

[–] Kallestar@lemmy.ml 1 points 3 hours ago

Just wait til they discover long neck giraffes, pet cats, and dogs

[–] tetris11@lemmy.ml 9 points 8 hours ago* (last edited 8 hours ago)

oh I'd teach 'em modern english, and then dump a truck load of People's Magazine's outside their hut

Going for a hunt today? Can't. Need to know what Janniston said to Branjelo on page 4

[–] Tramort@programming.dev 1 points 4 hours ago

a slot machine and a battery to keep it running

[–] swab148@lemmy.dbzer0.com 2 points 5 hours ago
[–] jordanlund@lemmy.world 5 points 8 hours ago (1 children)
[–] SkaveRat@discuss.tchncs.de 11 points 7 hours ago (1 children)
[–] sanguinepar@lemmy.world 1 points 5 hours ago

Flushlights.

Yes, toilet illuminators, what of it?

[–] chaosCruiser@futurology.today 1 points 6 hours ago* (last edited 1 hour ago)

A bottle with a highly concentrated solution of polonium, radium, plutonium or anything spicy and ionizing.

Preferably coupled with something that glows nicely, like ZnS. Just pick a suitable fluorescent dye and make it blue or green for bonus points.