system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel] How does Magneto's helmet block telepathy?

What sort of properties does Magneto's helmet have that blocks out telepathy? Does it have something have something to do with the material, the exact construction, both, or something else?
gpt
Human brain works by producing very small currents. That is what EEG detects when used to monitor brain activity. With most telepaths the current is strong enough that it can reach someone and effect them from a distance. Also their brain is able to detect the signal generated by people from some distance. faraday's cage can block em waves so Magneto's helmet works the same by blocking the signal produced by telepaths and keeps his brain signal from reaching telepaths. That is how juggernaut's helmet works too (don't know why the same thing doesn't happen with wolverine, he should be immune too) and that is the reason behind the conspiracy theoriest putting on a tin foil hat to avoid government's brain control and reading.