Is there a clear definition of what ZTA even is? I read the O'Reilly book, and as best I can tell, the advice was fairly obvious recommendations and also 'repla

Is there a clear definition of what ZTA even is? I read the O'Reilly book, and as best I can tell, the advice was fairly obvious recommendations and also 'replace your firewall as a single point of failure and make your access-control system your single point of failure'.