I think all of the theories are right, the initial cause was the communist system itself was defective followed by the imperial overstretch coupled

I think all of the theories are right, the initial cause was the communist system itself was defective followed by the imperial overstretch coupled with the bungled reforms hastening the demise of the once powerful USSR. Like our text says, "in trying to fix the system, they broke it" (Roskin, 2018, p. 94).