this post was submitted on 26 Aug 2025
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So a quick google says it uses 70 millivolts.
Which means the human brain has a metric fuckton of amperage (probably explains the heat)
285 Amps.
To safely carry that current you need 95mm2 of copper wire.
9.5cm X 9.5cm
So cubed, because 2d doesn't make sense is approximately 1000cm3
The human brain is 1300cm3
That means the human brain is just one fat copper wire
It's a shame we can't up the voltage a little bit and save on brain size
it is wrong, kinda. It would be correct if brains worked like a electrical conductor, but we are more like batteries (so ions move under electrochemical potential). in short, W = V I does not apply here.
If it did, the amount of heat produced would be humongous.
here is a reddit thread I found about this - https://www.reddit.com/r/askscience/comments/5ijvvd/what_is_the_amperage_of_the_human_nervous_system/
I mean you can. Most states have outlawed it now and it doesn't improve performance much.