system
Given the following post, respond as if you're commenting on Reddit:
human
Can exposure to an incredibly high dose of radiation lead to instant death?

If a person, standing in plain clothes is exposed to an intense radiation source (200+ roentgens / hour) , is it possible for them to die instantaneously?
gpt
Yes, high enough acute doses can prevent neurons from firing correctly and lead to instant death.  If you were to pull out a fuel assembly from a nuclear power plant and place it on the wall and run at it from 50 feet away.  You will die before touching it.