That's true but I think some people get overwhelmed by external "information" and don't know how to handle it. Keeping it in the context of what constitutes minimalism vs. excess collecting and/or hoarding behavior I know people who have so much junk that they have developed a blindness to it. For instance, they have to know that it isn't normal to fill their houses with so much crap that they can't properly navigate going from the living room to the bathroom on a daily basis but their brains see all those boxes and junk as a "threat", as an unsolvable problem, so the brain shuts down that part of the rational faculty because it feels it's under attack from reality. It can't cope with that particular issue so to "protect" the psyche it "blinds" the person from even recognizing the problem exists in the first place.
(If you talk to a hoarder about their problem they will often momentarily "surface" out of the fog, get emotional and agree with you that there is a problem and they need help with it, but then they will almost instantly return to a state of obliviousness and denial; putting things off for another day that never comes. And if you try to actually help them get rid of stuff they will become agitated and angry and defiant and defensive and will fight you tooth and nail to prevent you making any change to their circumstances. This is all part of their brains seeing their hoard as both a threat and a security blanket. They know it's unhealthy to live this way but at the same time they fear the loss of living this way, odd as that sounds.)
I'm not sure I'm explaining that properly and I also don't know if this is what Singularity was going for in terms of defining a "brain threat", but that's how I'm reading it based upon the hoarders I've known. Of course hoarding is the extreme end of the spectrum and shouldn't be confused with collecting and curating material objects. But then again, it's interesting to think about where the tipping point is when it comes to collecting vs. hoarding. And by that same token when does minimalism tip over into neurotic asceticism?