I have to admit I'm a little confused by this. I understand network criticality in terms of autocorrelation and crosscorrelation, but it seems like they define

I have to admit I'm a little confused by this. I understand network criticality in terms of autocorrelation and crosscorrelation, but it seems like they define deviation from criticality in terms of duration of neural ensemble rest periods (they link to another paper for this DCC definition). So isn't this in a sense saying (very very roughly) something like "mice sleep more when their neurons are resting more than expected based on a power law distribution"? If so seems kind of tautological. It's an interesting idea and kind of at the boundary of my understanding so I'm probably missing something.