system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are electric chairs not able to kill people instantly?

You see stories of people getting accidentally electrocuted in everyday life and dropping dead instantly, why aren’t electric chairs engineered with that amount of power?
gpt
Electricity kills you quite randomly. Sometimes it stops your heart, sometimes it doesn't. There have been cases where people survived touching high voltage lines with their face and skin burned off.

The amount of power required to guarantee immediate death is basically the amount needed to cook/evaporate you. It would get very messy that way, with no recognizable corpse left. At that point you could simply drop a truck on people for the same effect.