I went back and looked up brain death, and yeah, I made a misunderstanding. Fair enough.

> you have approached this from the perspective of 'prove to me that X doesn't happen'

There's absolutely nothing wrong with that. If I'm thinking of buying a power tool, then 'prove to me that <rapid unplanned disassembly> doesn't happen' is an appropriate tone, and exactly the kind of skeptical questioning that should take place: it's my problem if the problem happens.

I don't care what kind of political climate we're in; you don't get to tell me what kinds of questions I'm not supposed to ask.