In OSs prior to Catalina, CCC could create a bootable clone of your boot volume in another volume in the same container if SIP was disabled, and a complete, but non-bootable, one if it was enabled. In Catalina, because of a negative interaction between SIP and Apple's new System/Data scheme, even a complete non-bootable clone is impossible.
In my case it is not CCC that is the culprit....
According to Mike Bombich, CCC isn't the culprit...
If you're the curious sort, compare a CCC clone of your boot volume to another volume in the same container and the same SD! clone.
The new Great Equalizer is the SEND button.
In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire
