[zyxley]

I care about impact on people, not neuronal activity, and the point I'm making is that there's a minimum below which the real impact on a given person, considered in aggregate with the impact of everything else that's a part of being human, is effectively nil.

[ikeboy]

So at some point you need to say that "person being hurt X" is fine, but "person being hurt X+ one speck" is not.