Mistrust of mistrust means not occasional possible trustworthiness, but occasional actuated trustworthiness. My brain being trustworthy on occasion is not a so-what conclusion for me. Out of that comes attempts to identify when those occasions might be and when they are not happening but appear to be happening. I'm using the flaws to identify the strengths.

'My brain always trusts my brain to never be trustworthy' - I think that is what EY just said, but I could be mistaken.