this post was submitted on 28 Sep 2025
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[–] Corkyskog@sh.itjust.works 15 points 3 days ago (16 children)

If I made a sci-fi game I would just make the currency MWh. They handwave away so much science, why not have a watch sized device that can store insane amounts of power?

Which makes me wonder, is there a physics limit to the density of energy? There has to be, anyone know what it's called?

[–] anton@lemmy.blahaj.zone 6 points 3 days ago (1 children)

[...] why not have a watch sized device that can store insane amounts of power?

Because Hiroshima was leveled by "only" 20 MWh (cost ranges from 120€ in northern Scandinavia to 1010€ in Greece) so having people carry energy wallets with enough to make more around day to day is like paying your groceries bill with C4 (which is perfectly save as long as there is no primary explosive).

[–] Corkyskog@sh.itjust.works 2 points 3 days ago

Yeah, but they will have a perfect safe containment device, and a way to transfer safely, just like they have FTL.

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