"They ignore radiation? Yeah, that makes sense, they probably don't have any fine chemical structure to interfere with."
"No, you misunderstand. Soul gems are immune to radiation."
"But - radiation is just a spray of particles and energy - so there must be a limit to how much radiation a soul gem can withstand, right, and it's just that soul gems aren't subject to microstresses, right?"
"No."
"So you're telling me that I can break my soul gem by stepping on it wrong, but I can bathe it in the fires of a thousand thousand thousand gamma ray bursts and it will remain unscathed because the incoming bombardment counts as 'radiation'?"
"Yes."
"Why!?"
"Gamma radiation is divorced from the universe of human awareness, and thus has no karmic weight. Your foot, on the other hand-"