I love the simplicity of the System 1/2 breakdown - but is there any actual evidence behind it? It seems like such a classic pop-psychology observational deduction of how something might work with no science to prove it.

In cognitive psychology there's all sorts of evidence that we have two distinct processes, but I don't think anyone has really mapped it to a physical system yet.

Modeling two physical systems is pretty interesting though because dementia ends up looking like a clear failure of System 2. Really neat idea generator even if imperfect.